Machine washable. NOTE--Please check our size chart carefully before purchase, if you want loose feeling or you have a big belly or wide chest, advise to choose one size bigger. Occasion - The sleeveless muscle shirts is great for sports occasions: gym, workout, bodybuilding, fitness,training, running, basketball, weight lifting; also suitable for casual occasions like home, street, beach, vacation etc. Style - Pair this men's gym tank tops with sweatpants,jogging pants,compression pants,workout shorts, or you can stringer with shorts a comfy-casual look for the daily life. Design - This mens workout tank top features with heather pattern,u-type collar,Y back design, 3 pack in diferrent colors, loose & stringer cutting allows natural range of motion. Fabric - Made from moisture wicking 4 way stretch material, quick dry,lightweight and Stretch , keep you cool and comfy during your workout. Machine Wash. Pull On closure. Stretch fabric.