Osprey Packs Exos Pro 55L Backpack

Why We Like The Osprey Exos Pro 55L Backpack

To optimize weight and comfort for our longest through-hikes, Osprey fine-tuned the Exos to make the Exos Pro 55L Backpack. This ultralight design sheds nearly a pound off the original and a few more ounces when the lid is removed. Supportive details from the inside out allow us to manage a week´s load and adjust capacity, balance, and organization as needed.

Osprey´s comfort-focused carrying system starts with their AirSpeed suspension. This tensioned-mesh back panel offers a supportive fit and provides plenty of space between our backs and the pack for cool airflow on our longest hikes. Silicone print at the lumbar helps the hip belt grip more steadily, so the dynamic foam belt can stretch and move with our hips without slipping up our backs. Spacer mesh shoulder straps are ventilated as well, keeping air moving all around our torsos.

Details

• Optimized and ultralight through-hiking backpack
• 55-liter capacity can hold up to 30 pounds of equipment
• Tensioned mesh back panel lifts load for better airflow and load balance
• ExoForm harness and hip belt use EVA foam for dynamic fit and padding
• Removable lid sheds weight and reduces capacity for lighter trips
• FlapJacket covers top access when lid is removed
• Internal and external compression straps stabilize load
• Webbing lash points, compression pockets, and ice axe loops secure additional equipment
• Item #OSPZ1GA

Tech Specs

Responsible Collection

[accent, bottom] bluesign® APPROVED, Recycled/Repurposed

Material

[face fabric] NanoFly (100D nylon x 200D UHMWPE), PFAS-free DWR treatment, [accent] 210D recycled high-tenacity nylon, PFAS-free DWR treatment, [bottom] NanoFly (100D nylon x 200D UHMWPE), PFAS-free DWR treatment

Volume

[small/medium] (with top lid) 55L (3356cu in), (without top lid) 46L (2807cu in), [large/x-large] (with top lid) 58L (3539cu in), (without top lid) 49L (2990cu in)

Support/Suspension

AirSpeed (injection-molded ladder), LightWire frame, 3D-tensioned mesh back panel, silicone lumbar print

Shoulder Straps

ExoForm (reverse spacer mesh, die-cut EVA, 3D mesh), adjustable sternum strap (with whistle buckle)

Waist Belt

EVA foam

Hydration Compatible

yes, internal hydration sleeve (with hose port and Osprey Hydraclip)

Reservoir Included

no

Access

top

Pockets

1 zippered lid (removable), 1 compression front, 2 dual-access stretch mesh side, 1 zippered hip belt, 1 drop-in hip belt

Gear Loops

multiple front panel lash points

Ice Axe Carry

2 attachment points

Compression

dual side straps, internal straps

Weight Capacity

10 - 30lb

Dimensions

[small/medium] 28.35 x 3 x 12.2in, [large/x-large] 30.31 x 14.96 x 12.2in

Claimed Weight

[small/medium] (with top lid) 2lb 1.2oz, (without top lid) 1lb 14.6oz, [large/x-large] (with top lid) 2lb 2.6oz, (without top lid) 2lb

Activity

backpacking, ultralight backpacking

Manufacturer Warranty

lifetime