- 100% Polyester - Elastic closure - ELASTIC MATERIAL, MORE DURABLE - 2 IN 1 DESIGN: shorts with super-elastic built-in compression support thigh muscles to enhance performance and provide greater flexibility for additional flexibility - PHONE POCKET AND HEADPHONE JACK - CONCEALED ZIP POCKET: In addition to the large pockets on both sides, we have added a hidden zip pocket - ELASTIC WAISTBAND AND DRAWCORD: Simple design but both practical and fashion, inner compression shorts, elastic waistband, stylish-looking drawcord, and a seamless zipper pocket at rear for safe storage of small essentials, like key, changes or cards.