Features of the Burton Boys' Castable Jacket Comfort is key and Sherpa fleece speaks volumes when foul weather tries to put a damper on your day. Room-To-Grow System Fulltime Drop Down Hood Snap Closure Handwarmer PocketsWATERPROOFING: Water-Repellent Coated Nylon Taslan Fabric on Body, Sleeves and Hood Blocked with Polyester Denim fabric on Yoke WARMTH: mapped with Sherpa on Hood and Upper Body, Thermacore Insulation [80G] on Sleeves and Quilted Taffeta Lining Snap Closure Chest Pocket Sherpa lined Hood and Upper Body