Rook 65 EF Extended Fit Backpack Sizes:OS screw attachment on seat posts

screw attachment on seat posts with diameters from 25 to 32 mm

which incorporates Aerogel particles for incredible warmth with minimal bulk

make the pack waterproof and able to stand up to day-in-day-out use

a transparent lid with integrated colander

Rook 65 EF Extended Fit Backpack Sizes:OS screw attachment on seat postsWith a straightforward design and capable feature set, the Rook 65 EF offers a quality carry that backpackers will never second guess, no matter their experience level. A new injection molded ladder lock torso adjustment makes it easy to dial in the fit. An integrated raincover has your back when showers loom overhead. The Rook 65 is a certified bluesign product. Features Fixed top lid with zippered pocket Daylite compatible Dual upper and lower side