Men Neoprene Waist Trainer Vest Weight Loss Hot Sweat Slimming Body Shaper Sauna Tank Top Workout Shirt Shapewear No Zipper Upgraded Size, please choose the right size according to the picture on the left, XS-5XL size available.All sauna tank top is no zipper. Sauna vest burn fat more than regular gym clothing,fits snuggly around your midsection,helps posture for back and abs as you workout Making you sweat crazy when you workout keeping body warm during cold days,waist trainer vest can be worn under or over your regular shirts Slimming vests with no zipper is very comfortable to wear, can burn more fat, produce heat while wearing during workout,accelerating quick weight loss Neoprene material produce higher compression leading more sweating and help your body to sweat out harmful fats and toxin. Abdominal flatten and spinal support Sweat vest doesnt stink too much after prolonged use, easy clean and washable, please hang it outside to air dry