4-WAY STRETCH FABRIC THAT'S QUICK-DRYING AND BREATHABLE WATER-RESISTANT FINISH SIDE POCKETNO SNAG CROTCH PANELSTANDARD FIT - MOUNTAIN BIKE SPECIFIC FIT 95% NYLON 5% SPANDEXMADE WITH BLUE SIGN APPROVED FABRIC MEANING SUBSTANTIALLY FEWER CHEMICALS AND WATER WAS USED IN THE PRODUCTION - THESE PANTS ARE AS ECO-FRIENDLY AS THEY COME.