Ribbed knit collar made with Lycra maintains tightness and shape, wash after wash Durable quality construction with double-needle bottom hem, and coverseamed cuff and neck with shoulder-to-shoulder tape Legendary Pro Club quality, keeps shape over time without stretching or sagging. Famous for its casual style, premium material, quality construction and snug neck. Crafted with thick 6.5oz heavyweight fabric to have a relaxed fit for superior comfort. Double-needle construction provides the legendary durability and longevity that Pro Club is known for. People love Pro Club t-shirts because the collar and cuffs keep their shape over time without stretching out or sagging, and look good wash after wash. Will not shrink after washing. Pro Club is renown for over 30 years of quality product. Your mission for style and comfort ends here. All colors are 100% Cotton except Heather Gray (90% Cotton/10% Polyester) and Charcoal (50% Cotton/50% Polyester).