The prAna Waymann 2mm Jacket is a high performance spring long sleeve jacket made for warm water. Color blocked detail has immediate and long lasting appeal. Hyperstretch neoprene, 2mm thick, is bonded with recycled polyester and spandex at interior and exterior for comfort, and UPF 50+ rated for sun protection. A full underarm gusset extends to the waist for a full range of comfortable motion. Seams are flatlocked to prevent chafing while also providing durability and flexibility. A pocket on the left forearm has a key loop to ensure you have a ride home. Material: Polyester, Neoprene.