NEW Hyperlite Mountain Gear Southwest 40L
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If you can add it to your basket — it’s really in stock here in the EU!
DESCRIPTION
Hyperlite Mountain Gear Southwest 40L - is an ultralight, durable backpack designed for hikers who venture off-trail, where rough terrain demands more protection and gear often takes a beating. Built on the proven Windrider and Junction platforms, it offers the same minimalist performance—now with reinforced materials and fully solid external pockets to better shield your gear.
The pack is now made from NEW Dyneema® Woven Composite 3.9, a fully woven 200-denier fabric that improves abrasion resistance while staying incredibly light and 100% waterproof. Whether you’re pushing through brush, scrambling over rock, or navigating tight forest, this fabric is built to last.
The Southwest 40L features three solid external pockets made from Dyneema® Hardline fabric — perfect for storing gear you want protected from snags, thorns, or sharp rock. Updated pocket shapes and taller side walls make it easier to grab bottles or stash quick-access gear. Redesigned shoulder straps and a sewn-through back panel improve comfort, stability, and load transfer.
Inside, the main compartment offers 40 liters of storage, supported by a roll-top closure that helps adjust volume as needed. A simple internal hydration sleeve and large hip belt pockets keep essentials close, while removable aluminum stays and a supportive foam back panel help distribute up to 18 kg of gear comfortably.
With a starting weight of just 841 grams (size M), the Southwest 40L is a rugged and highly efficient pack built for backpackers who need reliability in tough, remote environments — without giving up the benefits of ultralight design.
| MATERIALS | Dyneema® Woven Composite 3.9, Hardline |
| INTERNAL VOLUME | 40L |
| EXTERNAL VOLUME | 11.5L |
| WEIGHT |
White: 841 g, Black: 841 g
*Average weight based on size medium* |
| LOAD CAPACITY |
Up to 18 kg | 40 lbs |
| BACK WIDTH | 27.9 cm | 11 in |
| HEIGHT (FULLY UNROLLED) | 80 cm | 31.5 in |
| TOP CIRCUMFERENCE | 95.3 cm | 37.5'' |
| BOTTOM CIRCUMFERENCE | 85.1 cm | 33.5'' |
- Constructed from Dyneema® Woven Composite 3.9, offering exceptional abrasion resistance while being lighter than Dyneema® Composite Hybrid 5.9
- Shoulder straps redesigned for a more natural curve and improved comfort; sewn-through back panel enhances load stability and reduces long-term wear
- Deeper side pockets with lowered rear edges improve access to water bottles and increase gear security
- Roll-top closure with vertical compression straps allows for easy volume adjustment and weather protection
- Y-shaped top strap compresses the upper load and secures items on top of the pack
- Integrated 6 mm foam back panel adds cushioning and support for everyday use
- Hip belt made from dual-density closed-cell foam and spacer mesh ensures comfort and support on long treks
- Hip belt pockets built with Dyneema® Hardline fabric and YKK #5 zippers offer secure and convenient storage for essentials
- Two removable, shaped aluminum stays help distribute load weight; can be removed to reduce pack weight
- All vertical seams and attachment points are seam-taped for improved water resistance
- Adjustable 19 mm sternum strap on daisy chain allows a fine-tuned fit
- Fully woven Dyneema® outer face improves durability, feels softer to the touch, and crinkles less in cold conditions
- Removable side compression straps and outer daisy chains provide flexible gear attachment options
- Hydration sleeve includes a simple hang loop and repositioned hydroport for easier access
- Back panel structure forms a natural curve for improved ergonomic fit and long-term comfort
- Optional internal pocket accessory available for added internal organization when needed
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