Features: -Ideal for ages 1-2 years -Designed to line Stonz boots -High quality Sherpa fleece adds a very warm insulating layer in the boot of the same size -The hem of the lining can be folded up or not. -It warms the legs when worn under the pants Warning: The lining takes up space in the boot, which will make it slightly smaller. The size of your liner must be the same as that of your boot. Composition: 100% polyester Lining: 65% polyester / 35% acrylic