Champion Men's Big and Tall Vapor PowerTrain Pocket Shorts 100% Polyester 100% Polyester - Machine Washable - Mesh panels at sideseams This natural breakthrough provides activated carbon, which promotes quick evaporation, for instant wicking and cooling; traps and absorbs fabric odors; and blocks at least 96% of harmful ultraviolet rays. Drawstring elastic waistband with two front pockets - Generous cut for ultimate comfort and ease of layering. Champions logo at left hem -Mesh or breathable fabric inserts in high heat zones allow sweat to evaporate and cool air to circulate.