Thanks to Gore-Tex, the Black Diamond Mission MX mitts are permanently waterproof, and with their generously padded PrimaLoft Gold insulation theyre a reliable choice for use in freezing conditions: skiing, walks, winter trekking, etc. This is a model introduced for the 2025/26 seasontherefore the Gore-Tex membrane is the so-called ePE type, meaning its made from polyethylene. The product therefore contains no PTFE, which is a big step towards environmental friendliness! - The palm boasts goatskin for extra durability, and the back of the hand is made of recycled polyester - Waterproof - PrimaLoft Gold insulation in the construction - Comfortable lining fabric - Wrist leashes Black Diamond recommends this product for temperatures between -12 and -31 ºC. When it comes to temperature limits, its worth approaching the extremes with caution: peoples tolerance to cold varies hugely depending on the person, situation and conditions. However, these recommendations do make it easier