Purpose and benefit Made to protect hydration bladder tubes and reduce freezing, this tube cover helps maintain reliable water flow and uninterrupted use in cold conditions. Construction and durability Made of materials, this water bladder tube cover is built to last and designed for practical everyday use. Size and compatibility Measuring 92cm (2 inches), it is specifically designed for bladder tubes with an outer diameter of approximately 9.8 to 10 mm. Please verify your bladder tube size before . Performance The casing reduces the likelihood of water freezing inside the tube, supporting consistent hydration in colder environments and minimizing interruptions. Practical design Designed for practicality, the cover fits along the tube to provide thermal protection without altering normal function. Use scenarios Winter hiking or backpacking: helps keep your hydration tube flowing during long coldweather treks. Coldweather cycling or commuting: reduces freezing risk on rides and daily commutes in low temperatures. Skiing, snowshoeing, or mountaineering: adds a simple thermal barrier for reliable access to water during alpine activities. Note Confirm your bladder tube outer diameter (approximately 9.8–10 mm) before buying to ensure proper fit.