evo.com | Therm-ic Boot Heaters > No more jerry rigging or duct tape! The Therm-ic C-Pack Wire Clip allows you to attach C-Pack batteries to boots with no strap! Designed for C-Pack Batteries Allows batteries to be attached to shoes or boots with no strap. Makes it possible to fix the battery on the Powerpack Universal Adapter. | Therm-ic C-Pack Wire Clip 2026