Felt WOOL BOOT LINERS: Made out of 75% Wool and 25% Synthetic Fibers. Boot Liners are 8mm thick for comfortable cushioning and come with heel reinforcements, “barn boot” style. Perfect for winter boots, rain boots, hunting boots and work boots.. MANUFACTURED IN CANADA: Our liners are 100% carded, felted, sewn and packaged in Canada. COLD PROTECTION: Keep your feet warm in extreme temperatures. Wool is an excellent natural insulator trapping the warmth your body generates. Ideal for snow boots, ice fishing, hunting season, outdoor chores, and cold-weather commutes. STAY FRESH AND DRY: Wool's natural properties work wonders to keep you fresh, dry and comfortable all day long. Perfect for sub-zero weather, outdoor work, hiking, and snow activities. REPLACEMENT LINERS (UNISEX SIZING): Give your favourite winter boots a second life. Our liners are sized for boots with existing removable liners, not for boots with permanent lining. See our sizing chart in our product images to ensure the right fit for you. A great alternative to thermal insoles or warm boot socks. WINTER ESSENTIAL MAKES A GREAT HOLIDAY GIFT: Reliable insulated boot inserts designed for snowmobiling, skiing, hiking, hunting, and everyday winter wear—keeping boots warmer and lasting longer. Also makes a thoughtful holiday gift for outdoor enthusiasts, workers, and anyone needing dependable cold-weather comfort. Our Wool Replacement Boot Liners are made from 75% Wool and 25% Synthetic Fibers. Boot Liners are 8mm thick for comfortable cushioning and come with heel reinforcements, “barn boot” style. Perfect for winter boots, rain boots, hunting boots and work boots. Our liners are 100% carded, felted, sewn and packaged in Canada. Keep your feet warm in extreme temperatures. Wool is an excellent natural insulator trapping the warmth your body generates. Wool's natural properties work wonders to keep you fresh, dry and comfortable all day long. Give your favourite winter boots a second life. Our liners are sized for boots with existing removable liners, not for boots with permanent lining. See our sizing chart in our product images to ensure the right fit for you.