Kulkea's critically acclaimed heated ski boot bag will get you to the mountain with toasty warm boots. The innovative Thermal Conduction Design™ directly transfers heat to both sides and the bottom of each ski boot while also emanating into the central compartment for apparel. Boots are warmed within 90 minutes and inserts are kept safe. Coupled with Kulkea's Intuitive Packing System™ the Thermal Trekker stores and organizes gear to make your ski adventure outstanding.