92% Polyester, 8% Spandex elastic closure Lightweight & Warm:Polyester 92%, Spandex 8%UV blocking materials. Smooth and Ultra-Soft Fabric that provides extreme comfort with very little weight without restriction. Free Stretch:The 4-Way stretch fabric with strong seams is offering full mobility and anti-squatting design, like the second skin , you will feel free in all activities, bringing you ultra-soft touch, and it will not hinder your activities. Made of premium comfort fabric that protect your skin from UVA/UVB during long hours of outdoor exercise and also can keep mosquito bites off you. Wicking & Drying:Moisture Sensing/Quick time Dry, Cool in Summer and heat retention in Winter, Quick and Dry Transport System - Sweat away from the body, keeping you dry and light without the sticky feeling and sweat smell The poly-spandex material works to wick away moisture while keeping you dry even during heavy activity, so you can wear compression pants to relax outdoors or exercise at any time.