Simple, comfortable, quiet. Made from comfortable lightweight cotton, the Wasatch-CB Short Sleeve T-Shirt offers excellent camouflage concealment in hot to temperate weather. Lightweight cotton crew neck short sleeve T-shirt, regular fit, Mossy Oak camo patterns. CB = Core and Basic. Not every hunting excursion requires gear rated for torrential rain, raging blizzards, or mercury plumetting below freezing temperatures. Core and Basic gear are perfect temperate weather when you're focused more on being silent than being warm.