Men's Latex Workout Weight Loss Corset Reversible Training Zipper Vest 80% Neoprene +20% Nylon. Attention Please Check Our Size Chart On the each color's left Size Picture. please use our advice size chart Do not use default Amazon Size Chart. Choose size mainly based on your waistline and Bust. If you are not sure about your size or have any other questions, please feel free to contact us. Latex material have a great function of ductility,which means it is a good way to help you keep a good figure and could help you lose weight,because it could help you burn your fat. Reversible The other side is black,trimming waist, tummy and back,Breathable and comfortable shell design,Ideal for slimming. You can wear it to participate in exercising sports or just enjoy it at home while performing daily tasks. Wish you a happy shopping,dear all. ^-^