The Rab Men's Muon 40L Hiking Pack is the perfect option for overnight treks and minimalist-minded weekenders. 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 an adjustable drawstring, and the removable lid adds coverage or lessens 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.