Compression Mens Waist Shapewear Weight Loss Neoprene Sauna Tank Top Vest Reversible, can wear it in reverse, both side as you like; Material: 80%Neoprene 20%Nylon; Zipper closure in the front,its more easy to wear; Controls abdomen and back ,Promotes good posture; Keeps your body warm and heat up your core abdominal area making you sweat more while performing your daily activities; Helps in burning tummy fat, reducing your abdomen and waist.