[UPF50 - Made by UPF50 fabric to keep your skin from the harmful UVA/UVB rayslightweight durable rashguard shirts for hot summer days. QUICK DRY - Polyester fabriclightweight and quick dry material will wicks moisture awaykeep you cool and cozy all day. "ELASTIC - Mens short sleeve t shirts four way stretch structure with excellent elasticityprovide full range of motionperfect for outdoor activities." PERFORMANCE - Slim fit polyester rashguardwhich is very soft smooth and lightweightcrew neck t shirts also extreme comfort. OCASSION - SwimmingSurfingRunningHikingFishingClimbingHuntingJoggingWorkoutBaseballTennisGolfetc.]