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

Tuned for travel, the large Osprey AirPorter LZ pack duffel is a backpack travel cover to keep your backpacking, trekking or hiking pack protected while in transit, be it by taxi, train or plane.

Carrying CasesPack Duffel Bags

Tuned for travel, the medium Osprey AirPorter LZ pack duffel is a backpack travel cover to keep your backpacking, trekking or hiking pack protected while in transit, be it by taxi, train or plane.

Carrying CasesPack Duffel Bags

Tuned for travel, the small Osprey AirPorter LZ pack duffel is a backpack travel cover to keep your backpacking, trekking or hiking pack protected while in transit, be it by taxi, train or plane.

Carrying CasesPack Duffel Bags

Keep your pack intact while traveling by air or train. Simply drop it into the Osprey Airporter LZ Backpack Duffel, and zip it up. Your pack's webbing and buckles will be protected during transit.

Carrying CasesPack Duffel Bags

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