Technical trails and hot weather can really test the quality of your shirt. Make sure you are up to the test with the lightweight, breathable, odor fighting Trail Runner Sleeveless Shirt. It's natural bamboo charcoal fabric, full mesh back panel, and superlight sleeveless design helps you stay ahead of the class. This shirt features AdvancedSkin ActiveDry technology and reflective branding front and back. Material: Polyester, Elastane, Bamboo Charcoal Fabric.