Troy Lee Designs Sprint Shorts: 600 Dernier Polyester material for durability and protection. Breathable mesh in thigh and rear leg panels for race ventilation. 4 way ribbed mesh in crotch and rear yoke for dialled race fit. Velcro side clinch straps for large waist size range adjustment. Spandex stretch liner in waist. Protective TPR thigh logos. TPD/Snap closure with zip cover.