Built for 8,000-meter peaks and Arctic expeditions - stay warm, protected and focused on the terrain in the Alti Mitts. Constructed with breathable and waterproof GORE-TEX®, highloft Moonlite Pile™ fleece, PrimaLoft® Gold Insulation, removable liners layer on protection while durable water-repellant Pittards® leather palms and Kevlar stitching withstand brutal alpine punishment.