SPANX Men's Targeted Core Crew Microfiber,Nylon,Nylon Blend,Spandex Imported Machine Wash SPANX&#174; For Men Size Guide This seamless undershirt is designed with compression zones that target the core for everyday shaping. Comfortably transform the torso&#8212;look sharper, stand taller, and feel stronger. Firming undershirt is comfortable enough to wear all day. Microfiber crew targets core. Breatheasy&#174; zones for a cool feel. Fitted design with maximum mobility. Eliminates bulk under clothes. Power level: medium. Style: SM0415. 89% nylon, 11% spandex. Machine wash cold, tumble dry low. Imported. Measurements: Length: 24 in Product measurements were taken using size MD (38-40). Please note that measurements may vary by size. If you're not fully satisfied with your purchase, you are welcome to return any unworn and unwashed items with tags intact and original packagin