Why Opt for Fit Cuffs?
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The Arm Cuffs V4.0 are designed to offer unmatched convenience, durability, and adaptability, making them the perfect fit for any user. With a focus on user-friendly design, these cuffs boast a one-size-fits-all structure that adapts seamlessly to various arm sizes, ensuring a secure and comfortable fit every time.
Key Features:
One-Size-Fits-All Design: The Arm Cuffs V4.0 is 7 cm (2.8 inch) wide and fits a wide circumference range of 20-46 cm (7.8-18.1 inches). A versatile sizing system that caters to all users, eliminating the need for multiple sizes and ensuring an easy, reliable fit for everyone.
Reverse Velcro Attachment: Equipped with a unique reverse Velcro mechanism, these cuffs allow for effortless, one-handed attachment and adjustment. This innovative design ensures that securing the cuffs is quick, straightforward, and hassle-free, even in challenging situations.
Durable Metal Connector: Built to withstand daily wear and tear, the cuffs include a robust metal connector that guarantees a strong, long-lasting attachment. This durable component ensures maximum security during use, providing users with confidence in the product’s reliability.
TPU-Coated Nylon Construction: The Arm Cuffs V4.0 are crafted from TPU-coated nylon, which offers excellent flexibility without the need for stiffeners. This material choice not only enhances comfort by allowing the cuffs to move naturally with the arm but also ensures that they remain lightweight and easy to wear.
Waterproof: Designed to withstand any environment, the cuffs are fully waterproof, making them suitable for all-weather use. Whether you’re caught in the rain or working in wet conditions, the Arm Cuffs V4.0 will continue to perform at their best.
QR Code for Easy Use Instructions: Each set of cuffs comes with a QR code that directs users to detailed how-to-use and fit instructions. This quick access to guidance ensures that users can make the most of their Arm Cuffs V4.0, right out of the box.
Strong Nylon Band for Easy Mounting: A sturdy nylon band is incorporated into the design, allowing for quick and secure mounting on the arm. This band adds an extra layer of versatility and ensures that the cuffs stay in place during movement, providing a reliable fit in any scenario.
The Arm Cuffs V4.0 are the ultimate blend of flexibility, durability, and ease of use, making them an essential accessory for anyone looking for reliable arm support in various activities.



The Leg Cuffs V4.0 are meticulously engineered for optimal support, durability, and adaptability, making them the ideal choice for leg applications. These cuffs are designed to fit a wide range of users with a one-size-fits-all design, providing a secure, comfortable fit that adjusts effortlessly to different leg sizes.
Key Features:
One-Size-Fits-All Design: With a cuff width of 10 cm (4 inches) and an adjustable thigh circumference range of 45-80 cm (17.7-31.5 inches). The Leg Cuffs V4.0 are built with a universal fit that adapts to various leg sizes, ensuring a snug and reliable fit for all users without the need for multiple sizing options.
Reverse Velcro Attachment: Featuring a reverse Velcro system, the cuffs are easy to attach and adjust using just one hand. This user-friendly design allows for quick, secure fastening, making the cuffs simple to use even in challenging conditions.
Durable Metal Connector: The cuffs come equipped with a strong metal connector, providing a secure and long-lasting attachment. This robust component enhances the cuffs' durability, offering dependable performance over prolonged use.
TPU-Coated Nylon with Flexible Stiffener: Constructed from TPU-coated nylon, the Leg Cuffs V4.0 incorporate a flexible stiffener, striking the perfect balance between flexibility and stability. This design optimizes the support and stability of the internal air bladder, ensuring the cuffs provide firm yet comfortable compression and support.
Waterproof: Designed to endure all types of environments, the Leg Cuffs V4.0 are fully waterproof, making them suitable for wet or humid conditions. This waterproof feature ensures that the cuffs maintain their performance no matter the weather.
QR Code for How-to-Use Instructions: Each pair of cuffs includes a QR code that directs users to comprehensive how-to-fit and usage instructions. This ensures that users can easily understand how to use the Leg Cuffs V4.0 effectively, maximizing their benefits from the first use.
Strong Nylon Band for Easy Mounting: A robust nylon band is integrated into the design for straightforward and secure mounting on the leg. This band ensures that the cuffs stay firmly in place during movement, providing consistent and reliable support.
The Leg Cuffs V4.0 combine flexibility and stability, offering the perfect compromise for supporting the air bladder while providing unparalleled comfort and ease of use. These cuffs are the ultimate choice for leg support, designed to deliver performance and comfort in equal measure.
Leg Cuff V5.0




The Leg Cuffs V5.0 have been expertly re-engineered to deliver enhanced performance, flexibility, and user comfort. Building on the proven foundation of its predecessors (V4.0 & V3.1) , the V5.0 introduces innovative features to redefine support for Lower Body BFR applications, offering a superior experience for a wide range of users.
Key Features:
Adjustable Universal Fit:
The Leg Cuffs V5.0 are designed with a flexible size range, accommodating leg lengths from 45 cm to 83 cm (17.7 to 32.7 inches) and a width of 11 cm (4.3 inches). This one-size-fits-all approach ensures a snug, secure fit across a broad spectrum of leg sizes, eliminating the need for multiple sizing options.
Enhanced Reverse Velcro System:
The cuffs feature an upgraded reverse Velcro attachment mechanism, enabling effortless one-handed adjustments. This intuitive design allows for quick, secure fastening and ensures the cuffs stay in place even in dynamic conditions.
Heavy-Duty Metal Connector:
With a reinforced metal connector, the V5.0 provides unparalleled durability and stability. This robust component is designed for long-term reliability, ensuring consistent performance under continuous use.
TPU-Coated Nylon with Advanced Flexible Stiffener:
The Leg Cuffs V5.0 are constructed with premium TPU-coated nylon, incorporating an advanced flexible stiffener. This combination ensures the perfect balance between flexibility and structural support, optimizing the stability and function of the internal air bladder while maintaining user comfort.
Waterproof and Weatherproof Design:
The cuffs are fully waterproof, making them ideal for use in wet, humid, or challenging environments. Whether in inclement weather or high-moisture settings, the Leg Cuffs V5.0 deliver reliable performance without compromise.
Integrated QR Code for User Guidance:
Each pair of cuffs includes a conveniently placed QR code that links to detailed fitting and usage instructions. This ensures users can easily understand and maximize the benefits of the Leg Cuffs V5.0 right out of the box.
Reinforced Nylon Band for Secure Mounting:
An improved nylon mounting band is incorporated for enhanced stability during use. This durable band ensures the cuffs remain securely in position, providing consistent support throughout any activity.
The Leg Cuffs V5.0 represent the ultimate evolution in leg support, offering an exceptional combination of adjustability, durability, and comfort. Perfect for diverse applications, these cuffs are built to deliver consistent, reliable performance in any environment, making them the premier choice for anyone seeking optimal leg support solutions.


Fit Cuffs – Leg Cuff V3.1 is the contoured Cuff in our Blood Flow Restriction (BFR) Training System, specifically designed to enhance user comfort, pressure distribution, and overall performance. This updated version features a curved, cone-shaped design with a flexible stiffener, providing the perfect balance of flexibility and stability for an optimized BFR experience.
Key Features:
Curved, Cone-Shaped Design: The Leg Cuff V3.1 offers an updated contour that naturally adjusts to various thigh shapes, including cone-tapered, slim, or straight legs. This personalized fit ensures optimal comfort and pressure distribution during exercise, enhancing the effectiveness of BFR training.
Wide Velcro Attachment Area: A generous Velcro attachment area allows for a fully customizable fit. By adjusting the placement of the Velcro strap, users can tailor the cuffs to their specific thigh shape and size, ensuring a secure and comfortable fit for all body types.
Flexible Stiffener for Stability and Comfort: The integrated flexible stiffener supports the internal air bladder, providing the ideal balance of flexibility and stability. This feature optimizes pressure control, ensuring consistent and effective compression during every session.
Durable Metal Quick-Disconnect Connectors: Equipped with solid metal connectors, the Leg Cuff V3.1 guarantees reliable performance and easy attachment and detachment during training. The durable design ensures that the cuffs remain secure and dependable even during the most intense workouts.
TPU-Coated Nylon Construction: Built with TPU-coated nylon, the cuffs offer a lightweight, waterproof, and robust design that can withstand rigorous training conditions. The material ensures durability without sacrificing comfort or flexibility.
One-Size-Fits-All: With a cuff width of 11 cm (4.3 inches) and an adjustable thigh circumference range of 45-85 cm (17.7-33.5 inches), the Leg Cuff V3.1 adapts to a broad spectrum of thigh sizes, making it a versatile choice for all users.
Easy QR Code Access for Instructions: Each cuff includes a QR code that links directly to a comprehensive guide on fitting and usage. This feature ensures that users can quickly learn how to achieve the best fit and maximize their training benefits.
The Fit Cuffs – Leg Cuff V3.1 is a state-of-the-art addition to any BFR training regimen, providing a customized, secure, and comfortable fit for all users. With its advanced design and focus on flexibility and stability, this cuff offers superior performance and comfort, ensuring an enhanced BFR training experience for any thigh shape.
For more details, explore our blog posts on cuff design features (insert ) and visit the "Calculate Pressure" module at training.fitcuffs.com for a personalized pressure recommendation.
The Fit Cuffs – Arm Cuff V3.1 is the updated version of our renowned arm cuffs, meticulously designed for superior adaptability, durability, and user comfort. Tailored to provide a personalized fit, these cuffs are an essential tool for optimized Blood Flow Restriction (BFR) training, ensuring that each session delivers the best results.
Key Features: Reverse Velcro Mechanism for Easy, One-Handed Adjustment: The reverse Velcro system is designed for effortless, one-handed attachment and adjustment, making the Arm Cuff V3.1 exceptionally user-friendly. This innovative approach ensures that securing the cuffs is quick, simple, and reliable, even when training alone.
One-Size-Fits-All Design: The Arm Cuffs V3.1 is 7 cm (2.8 inch) wide and fits a wide circumference range of 20-50 cm (7.8-19.7 inches). A versatile sizing system that caters to all users, eliminating the need for multiple sizes and ensuring an easy, reliable fit for everyone.
Strong Metal Quick-Connectors: Equipped with robust metal connectors, these cuffs provide secure, quick-disconnect functionality, allowing for smooth transitions during your workout. The high-quality materials ensure long-lasting durability and consistent performance under repeated use.
TPU-Coated Nylon with No Stiffeners for Optimal Flexibility: Crafted from TPU-coated nylon, the Arm Cuff V3.1 maintains optimal flexibility without the need for stiffeners, allowing the cuffs to move naturally with your arm. This flexible yet solid material enhances overall comfort while maintaining the structural integrity necessary for effective BFR training.
Waterproof for All-Weather Use: The cuffs are fully waterproof, making them perfect for indoor and outdoor training in any conditions. Whether dealing with sweat, rain, or other environmental factors, the Arm Cuff V3.1 performs consistently, ensuring a dependable BFR experience.
QR Code for Easy Instructions and Guidance: Each pair of cuffs includes a QR code that links directly to a detailed guide on how to fit and use the cuffs correctly. This quick access to instructions helps users maximize the benefits of their BFR training right from the start.
The Fit Cuffs – Arm Cuff V3.1 offers a unique blend of adaptability, durability, and comfort, making it a perfect addition to any BFR training routine. Designed with versatility in mind, these cuffs accommodate various arm shapes and sizes, ensuring a tailored, secure, and effective fit for every user.

The Wireless Pressure Gauge is an advanced pressure gauge designed to enhance the convenience, accuracy, and versatility of your Blood Flow Restriction (BFR) training. Featuring inflation, deflation, and precise pressure assessment (measured in mmHg), it offers multiple connection options, including direct attachment, standard tube length, or an extended long tube, providing unmatched flexibility for various BFR applications.
Key Features:
Versatile Connection Options: The Fit Manometer can be used with a standard length surface-treated silicone tube, a 2-meter (79-inch) long tube, or directly attached to the cuffs without a tube, allowing for adaptable setup based on your exercise needs.
Female & Male quick-Connectors for Seamless Integration: Equipped with the standard quick-connectors, the wireless gauge integrates seamlessly with the entire Fit Cuffs product line, ensuring effortless attachment and operation across all BFR cuffs and devices.
Rotating Gauge for Bilateral Use: The rotating gauge is ideal for bilateral applications, such as BFR cycling, offering easy access to pressure readings and adjustments during lower body exercises.
Instant Pressure Readings and Adjustments: The wireless design allows for rapid assessment and real-time adjustments of pressure during workouts, enhancing control and effectiveness in exercises like cycling, cardiovascular training, and passive BFR modalities.
Strong & Durable Metal Body and Frame: Built with a solid metal body and frame, the Fit Manometer is engineered for extreme durability, ensuring reliable performance even under rigorous use.
Ideal for Passive BFR Modalities: This wireless pressure gauge is perfect for passive BFR applications, such as Ischemic Preconditioning (IPC), post-exercise recovery (Ischemic Post-Conditioning), or during periods of immobilization to minimize muscle loss.
The Wireless Edition offers unmatched convenience and precision, making it an essential tool for effective BFR training, whether for active exercise or passive applications. Its versatility and robust design make it a perfect companion for maximizing your BFR workout experience.

The Standard Pressure Gauge is a reliable and durable pressure gauge designed to deliver accurate pressure readings and adjustments for Blood Flow Restriction (BFR) training. Engineered to work seamlessly with the Fit Cuffs system, this straightforward pressure gauge offers essential functionality for both upper and lower body BFR exercises.
Key Features:
Fixed Tube Design: Unlike the wireless edition, the Standard Manometer comes with a fixed-length tube that is permanently attached, providing a consistent and straightforward setup for BFR training. This fixed configuration ensures hassle-free usage without the need to swap tubes.
Male Quick-Connector for Air-tight attachment: Equipped with the standard male connector, the gauge easily attaches to all Fit Cuffs, ensuring a secure and reliable connection during inflation, deflation, and pressure adjustments.
Accurate Pressure Assessment: The Standard Edition offers precise measurement of pressure in mmHg, allowing for consistent and controlled BFR sessions. Its straightforward design provides instant feedback, making it easy to monitor and adjust cuff pressure during exercise.
Durable Construction: Built with a solid metal body and high-quality components, the Standard Manometer is engineered for long-lasting durability, able to withstand the demands of frequent use in both gym and clinical settings.
Optimized for All BFR Applications: Whether used for upper body, lower body. the Standard Manometer ensures precise pressure control, enhancing the effectiveness of your training. Easy
Inflation and Deflation: Designed for simplicity, the Standard Manometer enables swift inflation and deflation of the cuffs, allowing for smooth transitions between sets and exercises.
The Standard Edition is the ideal choice for those seeking a dependable, easy-to-use pressure gauge that provides essential functionality for effective BFR training. Its fixed-tube design and robust construction make it a versatile tool for achieving optimal results in any BFR exercise regimen.

Fit Cuffs® Training System vs. Similar Products
Below is listed some of the reasons why we find that Fit Cuffs is superior to other similar BFR systems
1. One-Size-Fits-All
Unlike other brands where you have many different sizes and you have to buy several different cuffs, Fit Cuffs is true One-Size-Fits-All. Our default cuff size will fit approx. 99% of all people with only one version for the upper and lower body, respectively.
2. Curved & Straight Cuffs
Unlike other brands where you have many different sizes and you have to buy several different cuffs, Fit Cuffs is true One-Size-Fits-All. Our default cuff size will fit approx. 99% of all people with only one version for the upper and lower body, respectively.





3. Improved width of the Cuffs
The width of the cuffs is somewhere in-between other brands, as there is nothing as perfect-sized cuffs, but pros and cons to all designs.
But a newly published review on the perceived discomfort during BFR Training, concludes that particularly in the upper body, narrower cuffs are favorable as wider cuffs seem to increase ratings of discomfort compared with more narrow cuffs. Spitz et al. (2020) Blood Flow Restricted Exercise and Discomfort: A Review
Narrow cuffs allow for more freedom of movement even though pressure must be a bit higher compared to wider cuffs. The problem with wider cuffs is the muscle tissue directly underneath the cuff experiences less hypertrophy compared to the rest of the muscle. Thus the favorable mechanism is to compress a small area, on the other hand, a narrow cuff has higher pressure gradients (fluctuations) during muscle contractions. See the figure from McEwen & Casey (2009) for further explanation (cuff type A & C).
4. Differentiated pliability
Fit Cuffs is the only system that uses differentiated pliability. Higher pliability for the upper body cuffs, as the muscle expansion of the biceps, is relatively larger compared to the thigh muscles. Some companies have rigid upper body cuffs, which can cause tissue damage, as the rigid cuffs won’t allow for muscle expansion during contractions. See the figure from McEwen & Casey (2009) (cuff type B vs C).

5. Limb Occlusion Pressure with the BFR Unit
It is commonly recommended to use a percentage of Limb Occlusion Pressure (LOP) / AOP, usually assessed with a hand-held doppler. With Fit Cuffs, you have the possibility to use the BFR Unit for fast, precise, and convenient assessment of LOP.
6. Best durability on the market
We are proud to tell you that our product return rate is below 1%, as shown by our satisfied customers at trustpilot.com. Fit Cuffs utilize an exclusive metal quick-connector, that is extremely durable as opposed to the disposable plastic connectors used in similar brands. This unique quick-connector also enables re-connection with the Fit Manometer (pressure gauge) without pressure loss during exercise. As opposed to the plastic connectors used by similar companies where the pressure will drop during re-connection with the pressure gauge. The rather simplistic design of Fit Cuffs makes for the best longevity on the market.

7. App module – Fitness Calculators
This feature can be assessed at the progressive web app “Fit Cuffs Training”.
One Repetition Maximum – By the 1RM module, you can estimate your repetition maximum with a submaximal load, or just enter your known 1RM, which is relevant for resistance training combined with BFR.
Aerobic Fitness – This module features 4(3) different tests built into one module. Here You can estimate Your VO2 Max, Fitness Level, and Watt Max, which are commonly known as “indirect tests” of VO2 Max. The tests can be performed on any type of exercise bike. Subsequently, you can use the built-in slider to set the intensity relative to either Watts or Beats Per Minute (BPM) relative to Your Heart Rate Reserve (HRR).


8. App module for calculation of individual pressures
This feature can be assessed at the progressive web app “Fit Cuffs Training”.
As a convenient alternative to LOP, You can use the “Calculate Pressure” Module to attain an individual algorithmic-based pressure (mmHg) recommendation. Please consider using the measurement tape, because limb circumference is the strongest predictor of LOP and the corresponding pressure calculation. Mind that the algorithm has been calibrated to Fit Cuffs in regards to width and pliability, and we do not recommend using it with other cuff types.
Engineered for Evidence-based Blood Flow Restriction Training ⬇
With Fit Cuffs you get a device exclusively developed for occlusion training a State-Of-The-Art. In only 10-20 minutes (including cuff attachment and detachment) you achieve a workout comparable to 30-45 min of conventional exercise relevant from Prehab to Rehab Performance & Maintenance.
Our primary goal is to create a product that is effective, safe and convenient, developed from the current science in Blood Flow Restriction Training. We have designed the product in such a way that it fits all people regardless of limb size, so if you are a physical therapist or a trainer you only need one set to service all of your clients!
Yes, you only need one complete set of Fit Cuffs to prehab, rehabilitate, improve performance or maintain muscle mass for everyone to achieve their goals!
When you buy a complete set of Fit Cuffs you get a professional product that is tried and tested on +1000 people of all ages, a product that takes up less space than a pair of trainers!
Fit Cuffs utilizes probably the best inflatable cuffs on the market and a unique and extremely high-quality metal quick-connector, this makes the process of inflation and deflation swift designed for optimal convenience.
An individual indicative pressure for optimal safety and effectiveness is available by our exclusive web app. Simply apply this pressure accordingly by the Fit Manometer (pressure gauge) which can be removed during training.
- Fit Cuffs® is specifically designed for BFR and fits all people regardless of limb size.
- The width of the Leg Cuffs V4.0 & V3.1 is 10/11 cm (4/4.3 Inch) and the Arm Cuffs is 7 cm (2.8 inch) - a size that is optimal for effect, safety and convenience.
- The possibility to assess Limb Occlusion Pressure (LOP) via the BFR Unit, so no need for an external Doppler.
- A single bladder system enables you to restrict blood flow at any given percentage.
- Strong nylon with TPU surface treatment material is used for the cuffs developed for superior comfort, hygiene, and durability.
- Waterproof and doesn’t absorb sweat.
- Specially calibrated module at training.fitcuffs.com > “Calculate Pressure”, which enables you to train at the sweet spot of 40-80 % Limb Occlusion Pressure (LOP) every single time.
- The durable metal quick-connector allows for quick attachment and detachment while maintaining cuff pressure for freedom of movement and consistent results.
- Highly accurate measurements by industry-leading pressure gauge (Fit Manometer).
- All parts are sold individually and they’re individually replaceable.
- From Denmark & always shipped from the city of Odder or Aarhus.







