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The S Boot Liner works with the La Sportiva Sideral 2.1 and Starlet 2.1 ski boots to provide additional comfort and warmth. This is a replacement liner.
⚠️ WARNING:This product contains perfluorooctanoic acid (PFOA), a chemical known to the State of California to cause cancer, reproductive harm, or other developmental issues. PFAS (Per- and Polyfluoroalkyl Substances), including PFOA, are used in this product to enhance water repellency, specifically engineered for protection in severe or wet weather conditions. These chemicals are known to persist in the environment.