The shirt says it all, only one way down this mountain. Made from 100% organic ring-spun cotton, this unisex t-shirt is a total must-have. It's high-quality, super comfy, and best of all—eco-friendly. • 100% organic cotton • Fabric weight: 5.3 Oz. • Single jersey • Medium fit American sizing system, so if you are ordering from outside the continental U.S. customers should order a size up.