COOLOMG Compression Pants Men's Baselayer Cool Dry Sports Tights Leggings Running Youth Boy Material:Polyester 85%, Spandex 15% - Smooth and Ultra-Soft Fabric that provides extreme comfort with very little weight without restriction - Machine Washable. Quick and Dry Transport System - Wicks Sweat away from the body, keeping you cooler and drier.UV Protection-99.2% blocks harmful rays when outdoors for extended periods of time Elasticity and Breathability-Ultra thin fabrics are great for sports that require quickness and agility Moisture Sensing Quick Dry-Dual-path air circulation for optimal performance and comfort Designed for all seasons(training,baseball,basketball,soccer,American football,NFL,Squat,weight training,cycle,surfing,yoga,all weather sports) Guarantee by COOLOMG-Children-care plan:If tights are busted after tumbling,we will provide a new pair of tights.We aim to always support kids in athletics and healthy living.