Setup Demo
Set Your Pressure With Confidence.
See how the cuffs, hand pump and gauge work together to create a measurable, repeatable setup.

See It In Action
Watch Total Flex™ Train Gain in real training sessions—from cuff placement and pressure setup to lighter-load arm and leg workouts.
Setup Demo
See how the cuffs, hand pump and gauge work together to create a measurable, repeatable setup.
Training Demo
Watch Total Flex™ Train Gain fit naturally into arm and leg workouts while reducing the need to simply add more weight.
BFR Explained
Learn how controlled restriction increases muscular demand and how the Total Flex™ Train Gain study measured performance.
Why Total Flex™ Train Gain
See how Total Flex™ Train Gain combines measurable pressure, guided setup and lighter-load training in one arm-and-leg system.
TrainGain
19%
Participants reached the study fatigue endpoint with approximately 19% fewer biceps-curl repetitions on average.
18%
Participants reached the study fatigue endpoint with approximately 18% fewer quadriceps-extension repetitions on average.
mmHg
The inflatable cuff, hand pump and gauge make applied pressure visible instead of relying only on perceived tightness.
Simple Three-Step Setup
From cuff placement to measurable pressure and training, Total Flex™ Train Gain makes every step easy to follow.
01 · Place
Wrap the appropriate cuff high on your upper arm or thigh, following the placement guidance in the training manual.
02 · Pump
Use the hand pump, visible gauge and Limb Occlusion Pressure guidance to establish your measurable reference pressure.
03 · Perform
Follow the recommended working-pressure range, then use lighter resistance or fewer repetitions as part of your BFR session.
HOW IT WORKS
BFR uses partial blood-flow resistance during exercise. Total Flex™ Train Gain adds an inflatable cuff system and gauge so setup can be measured and repeated.
Place the appropriate cuff at the top of the arm or thigh as directed in the manual.
Use the pulse oximeter as instructed to establish a reference Limb Occlusion Pressure.
Use the hand pump and gauge to set training pressure below full occlusion.
Follow the manual’s pressure, duration, rest and stop guidance for the selected exercise.
Performance
Total Flex™ Train Gain gives you another lever besides adding more weight or more repetitions. Set measurable cuff pressure and adapt the training variable that fits your session.
Arm + Leg Training
Use the appropriate cuffs for upper- or lower-body work. The current manual includes exercise examples, cuff placement, pressure guidance, rest periods and session-duration guidance.
Science You Can Measure
Total Flex™ Train Gain uses adjustable cuffs to create partial blood-flow resistance—making lighter-load training more challenging while keeping pressure visible.
Participants reached the study fatigue endpoint sooner during biceps curls.
Measured during quadriceps-extension training in the controlled study.
Total Flex™ Train Gain was tested against the same exercises performed without BFR.
What This Means for Your Training
Create a strong muscular stimulus using lighter resistance.
Increased metabolic stress and muscle-fiber recruitment can help support hypertrophy-focused training.
Increase muscular demand without simply adding more weight or more repetitions.
* In a controlled study of 50 men, participants reached fatigue with up to 33% fewer repetitions for arm workouts (average improvement: 19%) and up to 27% fewer repetitions for leg workouts (average improvement: 18%). Individual results may vary.
Complete System
One purchase gives you the arm and leg cuff system plus the tools used for pressure setup and storage.
Product Comparison
| Feature | Basic Bands | Total Flex™ Train Gain |
|---|---|---|
| Inflatable cuffs | × | ✓ |
| Pressure can be monitored during training | × | ✓ |
| Pressure can be adjusted for individual needs | × | ✓ |
| Helps avoid excessive or insufficient pressure | × | ✓ |
| Pressure can be set using an LOP-based reference | × | ✓ |
Questions Before You Buy
Clear answers on setup, product details, fabrics, steam, travel, UK voltage, returns and warranty.
The complete system includes two arm cuffs, two leg cuffs, hand pump, pressure gauge, pulse oximeter, storage bag and instructions.
The current H2OForYou offer is $199 for one complete Total Flex™ Train Gain system, reduced from an RRP of $249 (Save $50).
BFR training uses controlled partial blood-flow resistance during exercise. The goal is not full occlusion during training. Total Flex™ Train Gain uses inflatable cuffs with measurable pressure.
Limb Occlusion Pressure is the minimum pressure needed to temporarily stop blood flow and is used as a reference measurement. Exercise is not performed at full Limb Occlusion Pressure.
The gauge shows applied cuff pressure in mmHg so pressure can be adjusted objectively rather than relying only on perceived tightness.
It is a fitness accessory used only as instructed to help establish reference Limb Occlusion Pressure. It is not a medical device, not for diagnosis and not for continuous monitoring or use during exercise.
Yes. TrainGain includes separate cuffs for the arms and legs, allowing you to perform BFR exercises for both upper- and lower-body training.
Important: The arm and leg cuffs are designed to be used separately not at the same time.
BFR training is not appropriate for everyone. If you have an existing medical condition, circulation issue, or are unsure whether BFR is suitable for you, consult your physician or qualified healthcare professional before use.
You should seek medical guidance before using BFR if you:
IMPORTANT BFR SAFETY GUIDELINES
Never over-tighten the bands or intentionally block blood flow completely.
Discontinue use if you experience numbness, tingling, sharp pain, unusual discomfort or loss of normal color in the limb.
Keep your first BFR sessions short while your body becomes accustomed to the training method.
* In a controlled study of 50 men, participants reached fatigue with up to 33% fewer repetitions for arm workouts (average improvement: 19%) and up to 27% fewer repetitions for leg workouts (average improvement: 18%). Individual results may vary.
** 30 day money back guarantee, just pay return shipping.
“H2O”, “Total Flex”, “TrainGain” and related logos and variations are trademarks or registered trademarks, in Canada and/or other countries, of Thane IP Limited and/or its affiliated companies.