Expect more from your undershirt! This true. Cotton compression undershirt will forever change the way your favorite man looks and feels in his clothes. Soft, comfortable and powerful, this is the classic undershirt...redefined! Firms chest, flattens stomach, improves posture, supports lower back. High-stretch cotton for ultimate shaping. No bulk under clothes. Ergonomic, tapered shape for powerful body control. High-quality, ring-spun cotton. Flat-lock side seams remain invisible under clothing C.