Fly Racing Dirt Evolution DST Jersey The Fly Racing Dirt Evolution Collection has been reimagined and fully overhauled for greater performance, comfort and longevity. The Evolution DST (Durable Stretch Technology) Jersey now moves naturally with your body while still retaining it's classic low-profile, multi-panel construction. The Evolution DST Jersey features laser-cut perforations for superior ventilation and seamless armpit construction to prevent underarm friction and irritation. The Durable Stretch Technology (DST) Collection combines maximum range of motion and durability for a sport that holds flexibility and strength in the same regard. Fit: -Pro fit: ergonomic arms with a slightly slim cut Features: -Multi-panel construction -Laser-cut perforations -Full mesh back and integrated mesh in key areas -Open zero-cuff with Lycra gusset to help prevent arm pump -Multi-directional Lycra neck and shoulder panels -Silicone-printed tail to keep the jersey tucked in