Osprey Exos Pro 55 L backpack

Nearly a pound lighter than the Exos 58 and featuring a more fine-tuned adjustment system, the 55-litre Exos Pro is the most comfortable ultralight thru-hike backpack in its weight class. A highly-ventilated AirSpeed™ backpanel supports light loads with ease while maintaining maximum airflow across your back, making it an ideal pack for your most long-distance endeavours on the Appalachian Trail, Tour Du Mont Blanc and beyond.

Ultralight AirSpeed™ suspension
Lightweight injection-molded ladder provides 4" of torso adjustability, Two-sizes-per-gender design ensures perfect fit and allows for quick, easy adjustment, 3.5 mm powder-coated LightWire frame balances support and dynamic flex

Backpanel
3D-tensioned breathable mesh backpanel ensures supportive fit, Silicone print on lumbar fabric enhances hipbelt grip

Exoform harness
Shoulder straps combine reverse spacer mesh, die cut EVA foam and a unique structured 3D mesh to deliver excellent support and ventilation, Ventilated mesh yoke evenly distributes load for comfort while maintaining breathability, 15 mm adjustable slide sternum strap with rescue whistle

Exoform hipbelt
EVA foam padded hipbelt offers dynamic stretch for a secure, dynamic fit, Zippered pocket provides secure storage

Ultralight design
Lightweight fabrics deliver durable performance.

Removable lid
Sheds 74 g / 2.6 oz. when the top lid is removed. An integrated FlapJacket secures the main compartment opening, providing weather protection and load stability when the lid isn't used.

Volume flexibility
Compression straps and removable lid allow for functional capacity adjustment.

Features

• Removable, floating single compartment top lid with key clip.
• Four webbing lash points on top lid.
• FlapJacket secures main compartment access and provides weather protection when lid isn't used. Removing top lid reduces carry capacity by 9 L and weight by 80 g.
• Internal hydration sleeve with center back hose port and Osprey Hydraclip for easier reservoir hanging.
• Internal compression strap keeps loads stable.
• Large front fabric compression pocket with stretch side panels accommodates overloads.
• Multiple front panel lash points for securing extra gear.
• Lower side compression straps designed to capture sleeping pad on front panel.
• Deep, dual access stretch mesh side pockets.
• Dual ice axe loops with handle capture by upper compression straps.

Technical Specifications

• Size L/XL: volume 3539 IN 3 / 58 L; dimensions 30.31H X 14.96W X 12.2D (IN) - 77H X 38W X 31D (CM).
• Size S/M: Volume 3356 IN 3 / 55 L; Dimensions 28.35H X 3W X 12.2D (IN) - 72H X 38W X 31D (CM).
• Main Fabric: NanoFly™: Nylon 100D x 200D UHMWPE ripstop, DWR treated without PFAS.
• Bottom Fabric: NanoFly™: Nylon 100D x 200D UHMWPE ripstop, DWR treated without PFAS.