The detachable type of these boot liners makes them incredibly easy to use. Simply insert them into your boots when you need extra warmth, and remove them easily. You can easily adjust the level of insulation based on the weather.Features- Color: Beige-Material:Polyester fiber, plush- Size 40: 30.00X25.00X8.50cm/11.79X9.82X3.34in - Size 42: 32.00X26.00X9.00cm/12.58X10.22X3.54in- Size 44: 32.00X28.00X10.00cm/12.58X11.00X3.93in-Full ankle and calf protection: the high shaft type ensuring full protection for your ankles and calves-Plush: the plush inner lining provides exceptional warmth and comfort, making these liners ideal for cold weather-Enhanced work boot protection: these liners add an extra layer of protection to your work boots-Unisex: these liners are designed to fit both men and women comfortably-Used in harsh conditions: ideal for use in harsh weather conditions and demanding work environmentsPackage list: 1 x pair of rain boots liner