The Short Sleeve Nano Paddling Jacket is made from lightweight, hydrophobic 2. 5-layer polyester fabric that stays lighter, dries faster, breathes better, and prevents condensation. Neoprene neck and bicep bands comfortably keep water out. The articulated cut gives you room to move without being restricted or feel lost in excess fabric. A simple one-piece sticky neoprene tube tunnel keeps water out and reduces bulk around your midsection. Designed in-house in Confluence, Pennsylvania by the best in the business.