Troy Lee Designs Ace Men's BMX Bike Shorts - Elite Red / Size 38 Full waist and hip height adjustment with bonded rubber adjusters Permanent inner thigh ventilation via welded intake and exit vents Pedal friendly side pockets with welded side pocket and mesh pocket bag Welded, vented rear pocket with air mesh padding 4-way stretch, highly durable 90% polyester / 10% spandex mix material