SNUG & TIGHT FIT - PLEASE SIZE UP: If you're in between sizes or want some extra room we recommend picking 1 size larger then your normal size. This Sauna Shirt works best when it fits closely to your body so it can really work it's magic and get the make every step count. | SWEAT MORE - Sweat hard, keep dry: this garment was designed to increase perspiration but keep it all inside. Kewlioo sauna suit stimulates sweat during exercise 3x times more than normal clothing to aid in burning fat by preserving body heat where it matters most: your abs, lower back, chest & waist. The waist slimmer makes you sweat in the right spot using the comfort antislip waistband that is absorbing sweat so you're always dry on the outside. | FAST RESULTS - Maximize heat exposure and helps burn more calories FASTER by deploying evolutionary pressure on your body during workouts or everyday activities and forcing it to adapt. Speed up recovery time: keeps your muscles warm so you can ease in and out of physical exercise and help prevent muscle or joint injuries. | PREMIUM QUALITY - Made from absolute high-quality polymer fabric, this waist toner traps the heat and intensifies natural sweating 3x times more so you'll enjoy a hot-sauna-like experience and the associated health benefits. More sweat, less time. This shaper workout shirt will make you look slimmer INSTANTLY. It's built with a special technology that compresses the belly and hips. You can wear it with other exercise equipments and everyday clothes. | BYE BELLY FAT - This compression t-shirt for men is the secret weapon for your fitness journey, simply wear it discreetly under any outfit and WATCH your body TRANSFORM! Put this waist toner on and INSTANTLY feel how it tucks your tummy in, trims your waistline and give you a more toned and athletic look. (while working it's magic in the background)