Dakine's Dirt Jumper Jersey is made from breathable, wicking polyester to enhance warm-weather comfort. AEGIS Microbe Shield fabric treatment combats funky aromas, even after multi-day wearings and countless washings. The 3/4-length sleeves provide an extra measure of protection and the loose, comfortable fit makes the Dirt Jumper perfect with your armor or alone. It even features a built-in glasses cloth to clean your specs when things get messy.