Patagonia Youth Boys' Retro-X Jacket Medium, Blue 100% Polyester Pockets: vertical zippered chest pocket made of nylon; zippered handwarmers lined with brushed polyester mesh 7.5-oz Synchilla 100% polyester (86% recycled) " pile. Lining: 100% brushed polyester mesh with a windproof barrier. Trim: 100% nylon Great for layering. Hip-length