The Trail Runner SS T-Shirt delivers a lightweight, breathable comfort, while fighting odor naturally with a bamboo charcoal fabric. Lightweight fabric stays cool even when you heat up. The fabric also dries quickly to stay light during intense activity. This t-shirt features a reflective branding on front and back, jersey melange, Advanced Skin Active Dry, warp knit and is active fit. Advanced Skin technical fabrics improve body comfort by keeping you dry, warm and protected when you need it and where you need it. Material: Polyester.