It's a simple concept. Stay warm, stay dry, and ride longer. The Burton Treeline Leather Mittens have you covered with waterproof, insulated warmth and the time-tested durability of leather. 234141. The Durability of LeatherDurable leather palms have natural-flexing feel for fiddling with zips and buckles. Turn Up The HeatBreathable ThermacoreECO insulation cranks up the heat without adding bulk or restricting mobility and contains 95% recycled materialsStorm-ReadyA DRYRIDE membrane provides waterproof, breathable weather protection.Responsibly Sourced LeatherMade with leather sourced from suppliers that prioritize responsible production that supports environmental sustainability.