The detachable design of these boot liners makes them easy to use. Simply insert them into your boots when extra warmth is needed, and remove them as necessary. The insulation level can be adjusted according to weather conditions. Features - Color: Beige - Material: Polyester fiber, plush - Size 40: 30.00 x 25.00 x 8.50 cm / 11.79 x 9.82 x 3.34 in - Size 42: 32.00 x 26.00 x 9.00 cm / 12.58 x 10.22 x 3.54 in - Size 44: 32.00 x 28.00 x 10.00 cm / 12.58 x 11.00 x 3.93 in - Full ankle and calf protection: high shaft design provides coverage for ankles and calves - Plush lining: soft inner material offers warmth and comfort, suitable for cold weather - Enhanced boot protection: adds a protective layer to work boots - Unisex fit: designed to comfortably fit both men and women - Suitable for tough environments: ideal for cold weather and demanding work conditions Package list: 1 pair of rain boot liners