TONE, SHAPE LIFT YOUR BUTTThe BFR booty bands helps womens leg development and gluteal muscle growth by temporarily restricting blood flow into the muscles, accumulating lactic acid and HGH (human growth hormone).^ COMFORTABLE BREATHABLEOur fabric bands are very thick(width: 2), no obvious strangulation after use and tightness can be adjusted as you need. The buckle is made of high-quality PVC which fits your skin, and is much comfortable, no hurt for your thigh. The belt is made of polyester fiber which has high strength and elastic recovery ability, and is strong and durable. It is more breathable, and not feel dull and heavy compared with the Velcro Bands.^ EASILY ADJUSTABLE REPEATD USEOur occlusion bands adopts an upgraded buckle design, which can be reused many times during training without squeezing the thigh. Its designed to easily loosen and tighten, the bands length is about 90cm which allows most people adjust the tightness as you need.^ EXERCISE BANDS WITH BACKPACK Portable Booty resistance bands are Easy to Use Carry in anywhere, home, gym, outdoors or travel.^ SUITABLE FOR MANY EXERCISEExercise bands are ideal for assisting in yoga, pilates, barbell, squat, equipment training and beach body workouts. Fabric resistance bands will NOT slide or roll up during workouts,the best choice for sports and fitness.