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 Short Sleeve Shirt. It's natural bamboo charcoal fabric helps you stay ahead of the class, also lightweight fabric stays cool even when you heat up and dries quickly to stay light during intense activity. This shirt is featuring AdvancedSkin ActiveDry technology and reflective branding front and back. Material: Polyester, Elastane, Bamboo Charcoal Fabric.