The soft, ring-spun cotton of this t-shirt is also long-lasting. With a classic fit and seam-free body, you'll want to wear it every day. 100% soft ring-spun cotton (Sport Gray is 90% ring-spun cotton, 10% polyester; Dark Heather is 65% polyester, 35% cotton.) Modern classic fit Tubular body Double-needle sleeve and bottom hems Taped neck and shoulders Ribbed collar Wash cool, hang dry or tumble dry low Cool iron inside-out

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John Carmack Keen Shirt – Retro Gaming Tribute Tee for Tech & Game Dev Fans The John Carmack Keen Shirt is a nostalgic tribute to legendary programmer John Carmack and his early work on Commander Keen, a groundbreaking title that helped shape modern PC gaming. Designed for fans of classic games, computer history, and game development culture, this shirt celebrates innovation, creativity, and retro gaming roots. Featuring a clean, retro-inspired graphic and minimalist typography, this tee is perfect for casual wear, gaming events, tech meetups, conventions, or everyday outfits with nerd-core style. It pairs effortlessly with jeans, hoodies, flannels, or sneakers for a relaxed and timeless look. Made from soft, breathable cotton, the John Carmack Keen Shirt offers all-day comfort and durable, high-quality printing that stays sharp and vibrant after repeated washing. The unisex fit makes it versatile and comfortable for programmers, gamers, and tech enthusiasts of all styles.