95% Cotton +5% Lycra, Premium Cool Fabric: High-Stretchy & High-Breathable & Moisture-Wicking & Cool Feel, Unique Ventilated Mesh Side Panels provide in maximum breathability, keeping you fresh throughout your routines, Ultra lightweight & Elastic Tapered Cuff for an athletic fit, perfect for running, workout, yoga, golf, hiking, jogging, outdoor activities, gym fitness, lounging around the house, casual wear, etc.