Designed for easy on-trail sipping, the Gregory 3D Hydro 2-liter hydration reservoir dries quickly, attaches easily to compatible packs and feels comfortable thanks to an anatomic fit.

Pack, Bag, and Case Parts and AccessoriesHydration Reservoirs

Designed for easy on-trail sipping, the Gregory 3D Hydro 3-liter hydration reservoir dries quickly, attaches easily to compatible packs and feels comfortable thanks to an anatomic fit.

Pack, Bag, and Case Parts and AccessoriesHydration Reservoirs

The Gregory 3D Hydro Trek hydration reservoir transitions easily from trail sipping to camp water station thanks to its pour spout. Its multi-position design can fit in the top or sleeve of your pack.

Pack, Bag, and Case Parts and AccessoriesHydration Reservoirs

Keep your Black Diamond JetForce UL avalanche airbag pack ready for the worst with this Black Diamond airbag cartridge set.

Pack, Bag, and Case Parts and AccessoriesAvalanche Pack Accessories

Camelbak® has reworked its drinking valve to deliver twice the flow of the original design.

Pack, Bag, and Case Parts and AccessoriesHydration Pack Bite Valves

Keep your CamelBak hydration reservoir (sold separately) working at its best with this package of 4 Big Bite™ valves.

Pack, Bag, and Case Parts and AccessoriesHydration Pack Bite Valves

The Platypus Big Zip EVO filter connect kit lets you connect a GravityWorks™ or other common water filter to your Big Zip™ EVO reservoir without ever having to take it out of your pack.

Pack, Bag, and Case Parts and AccessoriesHydration Tube Accessories

With a new, self-sealing bite valve and wide tubing for a 50% faster flow rate than the previous Big Zip LP, the Platypus Big Zip EVO 2L reservoir helps you hydrate on the trails—sans hassle.

Pack, Bag, and Case Parts and AccessoriesHydration Reservoirs

Perfect for long day hikes or backpacking trips, the Platypus Big Zip EVO 3L reservoir features a new, self-sealing bite valve and wide tubing for a 50% faster flow rate than the previous Big Zip LP.

Pack, Bag, and Case Parts and AccessoriesHydration Reservoirs

The Osprey BioForm4 CM custom moldable hipbelt for women personalizes your Osprey pack with a heat-moldable design that delivers optimal fit, comfort and performance.

Pack, Bag, and Case Parts and AccessoriesHip Belts

The replacement Osprey BioForm4 shoulder straps for the Osprey Argon pack provide miles of comfort on the trail.

Pack, Bag, and Case Parts and AccessoriesBackpack Shoulder Harnesses

The replacement Osprey BioForm4 shoulder straps for the Osprey Xena pack (sold separately) provide miles of women-specific comfort on the trail.

Pack, Bag, and Case Parts and AccessoriesBackpack Shoulder Harnesses

Next time you set down your pack, you won't have to worry about your bite valve falling into the dirt. This Gregory bite valve cover with integrated tether keeps your valve dirt- and dust-free.

Pack, Bag, and Case Parts and AccessoriesBite Valve Covers

Non-toxic, UV-stable, flexible foam Bite Valve cover helps prevent freeze-up.

Pack, Bag, and Case Parts and AccessoriesBite Valve Covers