Celsius Liner Ozone 9 Snowboard Boot, Black, Size-10 The Celsius o-zone liner is 20% lighter The high density therma fit liners will keep you riding longer and your fee feeling happy fresh and warm At Celsius, we're dedicated to building not just products, but also a community Our customers, retailers and team riders are essential in shaping the company With simplicity and style, our products set new standards for performance and comfort