If warmth is your concern on the mountian, you'll find that the Thirtytwo Stash Jacket is packed with technology to kep your warm when the mountain throws it’s coldest weather at you with Thermatwo 40g insulation. The 3d Fleece Zonal Warming System ensures key body areas feel the warmth. The jacket keeps the elements out with the YKK AquaGaurd water repellent zippers and 32 Repel 10k 2-layer Shelll, Flat Finish Dura Stretch Twill, Fully taped seams, and 32 Lightweight lining system. you'll find the 32 Phone Leash system ensures your phone stays were it should, out of the snow!