Black Diamond Men's Size Chart Worn alone on sunny days at the cliff or under a flannel around town, the Black Diamond Attitude Tee is a durable, blended-fabric tee that does it all. The cotton and polyester blend feels soft while drying more quickly than a standard cotton shirt, and the climbing-specific underarm gussets keep the shirt from pulling up out of your harness when you're reaching for the thank-God jug. Features: - Climbing-specific gusseted underarm panels - Straight hem - Regular fit - Cotton/polyester blend - Last Chance: Discontinued Style