evo.com | Kulkea Travel Backpacks > The Kulkea Thermal Kart Boot Bag is a patent-pending, heated boot warmer system that plugs into a wall outlet or your car to keep boots warm on the go. Featuring a top-loading boot compartment and retractable helmet sling, this backpack is easy to travel with on the go. Fits Max Ski Boot Size Mondo 29.5 Retractable Helmet Sling Packs Your Helmet on The Exterior for Maximum Ventilation Surround Heating Warms Both Boots Top-Loading Boot Compartment Use Boots nest together in a compact, space-saving arrangement for efficient packing and easy access. Maximum Temperature 140degF / 60degC | Kulkea Thermal Kart Boot Bag 2027 in Black