Black Diamond Session Knit Mitts Features: Black Diamond’s single piece knit cuff features a custom blend of yarns, creating a revolutionary construction that perfectly blends weather resistance, dexterity, warmth and maximum breathability 133g PrimaLoft® Gold Cross Core insulation on the back, 60g PrimaLoft Gold Eco Insulation with Grip Control on the palm Goat leather construction is the perfect blend of durability and flexibility Single piece knit cuff for under the jacket comfort Wide-band wrist leash for all day security and comfort Temperature Range: -12/-1 °C (10/30 °F)   Session Knit Mitts