No.66 TOWN Men's Compression Slim Body Shaper Short Sleeve T-Shirt(2 Colors) nylon Imported 88%Nylon,12%Spandex,high elasticity,Thin,light Support your lower back,Slim your belly and improve your posture Microfiber Smooth,Breathable,Designed to slim and shape bodies Type X design on the back is best to shape body, Helps you burn calories and lose weight,slim waist Great for use during walking, jogging, weight lifting and other physical activities