Baffin SNOGOOSE REPLACEMENT LINER | Women's (Multi-Style Compatibility)Embrace superior warmth and comfort with Baffin's state of the art SNOGOOSE REPLACEMENT LINER, engineered to seamlessly extend the lifespan of Baffin boots. Baffin replacement liners are a key component to Baffin's multi layer inner boot system. Insulation: Removable Comfort Fit multi layer inner boot system featuring: Thermaplush soft, next to foot wicking layer for warmth Form fitting B Tek Foam lining for comfort B Tek Heat lightweight, 4 channel