Men's Heavyweight short sleeve Pro Club T-Shirts are 100% cotton made in the USA. It's a heavy duty cotton shirt with a nice soft hand feel. Customers love to wear Pro Club T-shirts because the collar keeps its shape overtime without stretching out or sagging. The functionality of a Pro Club T- shirt is endless. You can sport your Pro Club T-Shirts as an undershirt and you won't have to worry about the neck sagging or stretching out overtime. You can also wear your Pro Club T-Shirts layered or by themselves because our Pro Club Heavyweight T-Shirts are not see-through like other blank t-shirt brands. VARIOUS SIZES AND COLORS AVAILABLE AT MY AMAZON STOREFRONT.