Description: 【1 Pair Of Thermal Liners】: This package includes 1 pair of warm thermal boot liners specifically designed to fit inside your existing rain boots and hiking footwear, providing an extra insulation layer that transforms your regular boots into cold weather gear 【Effective Insulation Technology】: Featuring advanced thermal insulation materials, these boot inserts effectively retain body heat while blocking cold transfer from the ground, ensuring your feet stay warm and comfortable during extended outdoor activities in freezing conditions 【Comfortable Knitted Cuff Design】: The long thermal socks feature soft knitted cuffs that prevent cold air from entering your boots while providing a comfortable seal around your calves, no more chilly drafts or snow getting inside your footwear during winter activities 【Universal Boot Compatibility】: These insulated liners are compatible for various boot types, including rain boots, hiking footwear, and work boots, making them great for outdoor enthusiasts, fishermen, and winter sports participants 【Sturdy Moisture Resistant Construction】: Made from quality moisture wicking materials that maintain their insulating properties even in damp conditions, these boot liners offer reliable warmth and comfort throughout the winter season Specification: Material: Cloth Package Includes: 1 Pair of Boot Liners Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.