Keep every sip cleaner on the trail with the Gregory Bite Valve Cover, a simple but smart hydration upgrade built to keep dirt, dust, and trail grime away from your reservoir bite valve.Designed with an integrated tether, this cover stays securely attached to your hydration hose so its always right where you need it. Simply thread the tether over the hose before attaching the bite valve, and youre ready to head into the backcountry with added peace of mind.Compatible with Gregory DryLock Magnetic Bite Valves and reservoirs, this lightweight cover is perfect for backpacking, day hiking, and Philmont treks where keeping your hydration system clean can make all the difference over long miles.DetailsBite valve cover with integrated tether Helps keep dirt and dust away from the valve Compatible with Gregory DryLock Magnetic Bite Valves Fits hoses up to 0.5″ / 13 mm outer diameter Easy tether attachment over hydration hose Great for backpacking and day hiki