Winter Snow Jacket. 2-Layer, 20k waterproof anorak weather protection. Technical and versatile with a relaxed fit, the women's Burton Reserve 2L Anorak is the shell you can build your winter layering system around. Fully-taped seams and two-layer 20k/20k storm protection make for a warm, dry world when paired with the mid-layer of your choice. A complete package of rider-designed features gives you all the venting, adjustability, and functional pockets you need to dial in your comfort on the mountain.