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Hyperlite Mountain Gear Southwest Pack 3400 (White) (55L)


Stripped down and high-performance, we dialed in our 3400 Southwest Pack to meet the exacting requirements of multi-day adventurers. Made with ultra-durable, 100% waterproof Dyneema® Composite Fabrics (formerly Cuben Fiber), this pack excels in rugged environments. SectionHiker.com says, “This bomber multi-day backpack was geared for tough adventures that would rip most other ultralight-style packs to shreds.”

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2.02 lbs | 32.4 oz | 918g (White)

Load capacity: Up to 40 lbs | 18kg


  • Body: 50D Dyneema®/Poly hybrid for white version
  • Body: 150D Dyneema®/Poly hybrid for black version
  • Bottom: Double reinforced 150D Dyneema®/Poly hybrid
  • External Pockets: Dyneema® Hardline


  • Interior: 3400 cu. in. (55L)
  • External: 600 cu. in. (9.8L)
  • Center pocket: 300 cu. in.
  • Side pockets: 150 cu. in.


  • Top Circumference: 40” (101.6cm)
  • Bottom Circumference: 33.5” (85.1cm)
  • Height (fully unrolled): 34” (86.4cm)
  • Back Width: 10.5” (26.7cm)


  • Made in Maine
  • Three external, solid Dyneema® Hardline pockets
  • Removable, contoured aluminum stays
  • Dyneema® Hardline shoulder straps with 3/8” closed cell foam and spacer mesh
  • 1/4” foam back panel pad
  • Compression System
    • Roll-Top closure system with side compression straps for vertical compression
    • Side compression straps for horizontal compression
    • Top Y-strap compression — Designed to secure gear
  • Dyneema® Hardline hip belt with 1/8” closed cell rigid foam and spacer mesh
  • Dyneema® Hardline zippered pockets on hip belt with #5 YKK zipper
  • Adjustable sternum strap with self-tensioning elastic
  • Ice Axe loop
  • Hydro port and internal mesh hydro sleeve
  • Four exterior triglide buckles for optional pack accessory straps
  • Proprietary seam sealing on all side seams and behind all sewn-on pack features
  • Dyneema® Fiber Tex 69 thread


  • Small (15.0″ – 17.0″ Torso)
  • Medium (17.0″ – 19.0″ Torso)
  • Large (19.0″ – 21.0″ Torso)
Frame Size

Small, Medium, Large