Arc'teryx Liner GTX Insulated Mid M replacement boot liners offer a high-performance solution for cold-weather outdoor activities. Constructed with a Gore-Tex waterproof and breathable membrane, these liners ensure feet stay dry and comfortable in challenging conditions. The mid-height design features a sleek black technical mesh upper with reinforced rubberized heel and toe caps for enhanced durability. Integrated Ortholite insoles provide cushioned support, while the pull tabs at the front and rear allow for easy entry and removal. Designed as a specialized component for Arc'teryx technical footwear, these liners maintain a near-mint, like-new appearance.