If you live to descend and emerge from rocky canyons and otherworldly formations with calloused hands and sunbaked river sediment, Hyperlite Mountain Gear Southwest 55 pack is a reliable companion.

• Superlight, robust main compartment is made with 100% waterproof Dyneema® composite fabric
• White colorway is made with 50-denier Dyneema for a slightly lower pack weight
• Black colorway is constructed with 150-denier Dyneema, which is more tightly woven for increased durability with a marginal increase in pack weight
• 55-liter (3,400 cu. in.) internal volume and 9.8-liter external volume (600 cu. in.) is ideal for weekend, section or thru-hikes or for trips requiring flexibility
• The top can roll down to make the overall size of the pack similar to the 40-liter version, but that additional pack space can come in handy when you need it
• 3 external, solid Hardline with Dyneema pockets add an extra line of defense around the gear you'll want to quickly reach at any time without having to open your whole pack
• Removable, contoured aluminum stays
• Hardline with Dyneema shoulder straps with 0.375 in. closed cell foam and spacer mesh; 0.25 in. foam back panel pad
• Roll-top closure system with side straps for vertical compression; side compression straps for horizontal compression
• Top Y-strap compression is designed to secure gear
• Hardline with Dyneema hipbelt with 0.125 in. closed-cell rigid foam; zippered pockets on hipbelt with #5 YKK zipper
• Adjustable sternum strap with self-tensioning elastic
• Hydro port and internal mesh hydro sleeve hold your hydration reservoir (not included)
• 4 exterior triglide buckles for optional Hyperlite Mountain Gear Pack Accessory Straps (not included)
• Proprietary seam sealing on all side seams and behind all sewn-on pack features help keep the elements out
• Ice axe loop