1.main fabric material is 80%Nylon+20% Spandex 2reflective LOGO enable more safety in the night 3cool and quick dry Product Features1 Pair/Set, Ultimate UV Protection: UV-RCooler than Bare Skin.Perfect for All Outdoor & Indoor Activities even Work-space Upgraded Non Slip Elastic Bands on Top & Bottom 3rd Skin Concept - Make more comfortable than others. Premium Fabric: 80%Nylon+20% Spandex(Fast Sweat Kick-away & Fast Dry)

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arm sleeve, arm warmer