The Southwest, like the Windrider and Junction, represents our vision of a versatile, adaptable, and capable tool for nearly any adventure. Since its introduction over fifteen years ago, countless backpackers have seen and done it all with theirs. The Southwest&&';;s main pack body is built with a new, fully woven DyneemaA(R) 200-denier fabric that offers more durability than ever before with the same signature lightweight and 100% waterproof qualities that have made Dyneema our primary material choice from the beginning. With solid-fabric exterior pockets that offer added protection for whatever&&';;s inside in abrasive, rocky terrain, the Southwest is a comfortable pack that delivers premium performance wherever you&&';;re headed. Key Features: The new DyneemaA(R) Woven Composite 3.9 combines the light weight of DyneemaA(R) Composite Hybrid 3.8 with durability and abrasion resistance that surpasses even the heavier DyneemaA(R) Composite Hybrid 5.9. Redesigned shoulder straps and a sewn-through back panel provide a more comfortable and secure fit, with better weight distribution and less wear over time. Redesigned outside pockets with more depth, lower back edges for easier access to water bottles, and improved security for gear (like the ice axe) make packing and accessing items more convenient. Features Top Closure Roll-top closure system with vertical compression straps allows you to adjust the pack&';s volume, keeping the load compact, stable and protected from weather. Compression Top Y-Strap provides compression and top of pack storage for gear. Back Panel An integrated 1/4" foam back panel pad adds cushioning and support for a more comfortable carry. 70L Back Panel An integrated dual density foam back panel with plastic stiffener adds cushioning and support for a comfortable carry at heavier loads. Hip Belt Dual density foam hip belt, featuring closed cell foam and spacer mesh, provides comfort and support for long hauls. Hip Belt Hardline with DyneemaA(R) zippered pockets on the hip belt offer easy access to essentials, secured with a reliable #5 YKK zipper. Stays Two removable, contoured aluminum stays offer support and help distribute the load. Stays can be removed for additional weight savings. Weather Protection Seam tape on all vertical side seams and behind sewn-on pack features enhances water resistance, keeping your gear dry. Sternum Straps 3/4" Sternum Strap allows for easy adjustments along shoulder strap daisy chains. Shoulder Straps Redesigned shoulder straps featuring an adjusted shape for a more natural curve around your neck, providing enhanced comfort. More frequent bartacks provide increased sternum strap adjustment options, allowing for a perfectly customized fit. Dyneema Fabric Crafted with our exclusive DyneemaA(R) Woven Composite 3.9, this fabric offers significantly higher durability at a lighter weight than DCH materials. Its unique fully woven Dyneema face provides exceptional abrasion resistance, feels better to the touch, and reduces crinkling in cold conditions for a superior user experience. External Carry Customize your carry with removable side compression straps that easily adjust or detach, offering versatile gear attachment options. Opposing buckles allow you to secure items centrally, while daisy chains on the outer pocket accommodate various straps for added external storage flexibility. Hydration System Stay hydrated on the go with a streamlined hydration system featuring a simple bladder hang loop and a repositioned hydroport. Ergonomic Fit Sewn-through back panel construction creates a curved shape that locks the interior panel in place procviding a more comfortable and durable fit. Pack Accessory Options An optional, removable inside pocket is available as an accessory, enabling you to add extra internal storage whenever you need it. Specs 40L Pack Volume 40L External Volume 11.5 L Load Capacity Up to 40 lbs Material DyneemaA(R) Woven Composite 3.9, Hardline White 29.7 oz | 841.7 g* Black 29.7 oz | 841.7 g* Back Width 11 in | 27.9 cm Height - Fully Unrolled 31.5 in | 80.0 cm Top Circumference 37.5" | 95.3 cm Bottom Circumference 33.5" | 85.1 cm Country Mexico Average weight based on size medium 55L Pack Volume 55L External Volume 13.4 L Load Capacity Up to 40 lbs Material DyneemaA(R) Woven Composite 3.9, Hardline White 30.8 oz | 874 g* Black 30.9 oz | 876.3 g* Back Width 11 in | 27.9 cm Height - Fully Unrolled 36 in | 91.4 cm Top Circumference 40.0in | 101.6 cm Bottom Circumference 33.5" | 85.1 cm Country Mexico 70L Pack Volume 70L External Volume 16 L Load Capacity Up to 60 lbs Material DyneemaA(R) Woven Composite 3.9, Hardline White 35.6 oz | 1008.1 g* Black 36.0 oz | 1019.6 g* Back Width 11 in | 27.9 cm Height - Fully Unrolled 38.5" | 97.8 cm Top Circumference 45.0" | 114.3 cm Bottom Circumference 37.5" | 95.3 cm Country Mexico Average weight based on size medium