The SOFT VALVE COVER is a replacement valve kit that extends the life of your soft flask or bladder. As well as 2 spare valves, you also get two protective caps to help keep pollution and germs out. Compatible with all Salomon caps. Does not include the plastic part integrated into the flask. FEATURES & FABRICS - SUSTAINABILITY - PVC, bisphenol - A free: FDA approved polyurethane. - MISCELLANEOUS: Beyond lifetime guarantee - FABRICS: Silicone - FABRICS - TPU: A plastic with multiple properties: elasticity, comfort, transparency, resists liquid penetration, taste free, PVC free, and non-toxic. Ideal for hydration bladders & tubes. - SUSTAINABILITY: PFC-free Body 100% Silicon Article ref. LC2019900