Keep your hydration system clean and trail-ready with the Gregory Bite Valve Cover, designed to protect your bite valve from dust, dirt, and trail debris. Whether you&';re hiking through dry backcountry terrain or biking dusty singletrack, this lightweight yet durable cover ensures that the part of your system you drink from stays clean and hygienic. Compatible with Gregory&';s DryLock Magnetic Bite Valves, the cover features an integrated tether for easy attachment. Simply thread the tether over your hose before installing the bite valve, and the cover stays securely in place-even during rugged adventures. Designed to fit hoses with up to a 0.5" (13 mm) outer diameter, it&';s the essential accessory for maintaining hydration hygiene wherever your journey takes you. Features: Protective Bite Valve CoverShields your valve from dust, dirt, and debris to keep drinking water clean. Integrated Tether AttachmentEnsures the cover stays connected and won&';t get lost on the trail. DryLock Valve CompatibilityDesigned to fit all Gregory DryLock Magnetic Bite Valves and reservoirs. Easy to InstallThread the tether over your hydration hose before bite valve installation for a secure fit. Universal Fit for Hydration HosesCompatible with hoses up to 0.5" (13 mm) outer diameter.