- Ultralight Trekking Backpack | Rab’s largest ultralight trekking backpack built for fast-moving hikers pounding out miles on thru-hikes and minimalist weekend adventures.
- Tri-Flex Carry System | Light, stable wraparound harness with a shaped lumbar pad and supportive hipbelt for long-distance comfort.
- Surprisingly Tough | Rab’s Spectra ripstop is 15 times tougher than steel relative to its weight, and it’s woven with Cordura and finished in Hydroshield for long-lasting durability and weather protection.
- Trail-Ready Features | Hydration-compatible sleeve sized for 3L reservoir. Roll top closure. Top & bottom compression straps and the bottom straps carry extra equipment.
- Specs | [Best Use] Thru-Hiking, Backpacking, Trekking; [Weight] 1lb 16oz; [Volume] 40L (2440cu in); [Dimensions] 24.4 x 12.9 x 11.8in; [Material] 100D (85% Recycled) High Tenacity Nylon, Spectra; [Pockets] 2 Harness, 2 Side, 1 Large Front Stash; [Carry] Trekking Poles.
The Rab Women’s Muon ND40L Hiking Pack is the smaller backpack in Rab’s series of ultralight trekking backpacks. Its 40L main compartment is ideally sized for overnight thru-hikes and the most minimal weekends spent backpacking. Rab made it out of Spectra ripstop woven with Cordura and finished in Hydroshield for a surprising strength-to-weight ratio and long-lasting weather protection. Rab’s Tri-Flex carry system combines lumbar support, hipbelt padding, and wider wraparound shoulder straps that were inspired by running vests. The Muon closes with a roll top that stays secure without adding weight. There’s a sleeve inside the main compartment that Rab sized for 3L hydration reservoirs, and multiple port exits let you take a sip on the trail from your left or right shoulder. Outside the pack, there are trekking pole attachments and a large front stash pocket for layers.
