When the you-know-what starts dropping, your boogers start freezing in your nose, and your breath turns to rime on your face, it's time for the Black Diamond Mercury Women's Mitten. Black Diamond's most popular mitt, the Mercury has everything you need in a real all-rounder, with a BDry waterproof insert, removable split-finger fleece liner, and goat leather palm that provides great grip on ski poles, ropes, and even ice axes. To keep the screaming barfies at bay, BD also packed the Mercury full of Primaloft insulation, which will keep heat close to your fingers even if it gets soggy. It shouldn't, though, because the wrist cinch and drawcord gauntlet will make sure no snow sneaks in, and the Kevlar palm stitching will help you enjoy seasons of leak-proof durability.