NeopreneHook and Loop closureComfortable Adjustable & Breathable Stretchy Fabrics - This Waist Trimmer Belt made of Stretchy neoprene finest fabric, Covered with ventilation holes, which means it is easy to Sweat and breathable. Double velcro adjustment for sizing accuracy, Mesh backing for breathability during hot sauna or other fitness activities.Double-adjustment Durable Velcro closure waistband to enhance the compression around your tummy and adjustment. You don't worry about velcro falling off when you're exercising, because the velcro and the material inside are stitches together. Our trimmer is naturally flexible to adjust to your size and shape and contoured to fit around your waist comfortably during exercise. A spandex belt provides more cinching ability for this waist trainer.Efficient Hourglass Body Shaper - Instantly shapes your body into an hourglass figure; Sculpts 4-8 inches from your waistline; Combine the continuous use with a healthy lean diet, exercise, and drink plenty of water for extraordinary results.Function Workout Waist Trainer - Our waist shaper belt helps smooth you after pregnancy or -section tummy flabby and love handles, helping you look slimmer. It also helps the postpartum recovery process, reduces swelling, tightens skin, controls the tummy, and shrinks it down to normal size, and be used during work, daily outfit, workout, fitness, or yoga.100% SATISFIED CUSTOMER SERVICE: Pls measure waistline and read our size chart, if any ideas, contact us first &We will meet your request, exchange/return/refund is available, make you satisfied.