Under Armour Boy`s UA Ridge Reaper Ninja Hoodie 1. UA CoolSwitch uses an exclusive coating on the inside that pulls heat away from your skin, making you actually feel cool & able to perform longer. Super-breathable performance mesh panels for enhanced ventilation. Signature Moisture Transport System wicks sweat to keep you dry & light Anti-odor technology keeps your gear fresher, longer. Raglan sleeves unlock mobility for serious range of motion. 3-piece hood with tall ninja collar & crossover neck detail. Polyester/Elastane.