The 3400 Southwest from Hyperlite Mountain Gear is a particularly lightweight, yet robust and waterrepellent backpack with taped seams and a double bottom made of Dyneema composite hybrid fabric. The Southwest 3400 holds almost 50 litres of luggage inside and a further 10 litres with external pockets and a sophisticated rolltop closure. Ropes, trekking poles and similar items can be attached to the lid strap or on the outside. The rucksack has removable aluminium rods, a padded back and a wide hip belt with two waterproof zipped pockets. On the outside, it has three pockets made of closed stretch fabric so that you won't get caught so easily. Size S. Back length 3843 cm.
The 3400 Southwest from Hyperlite Mountain Gear is a particularly lightweight, yet robust and waterrepellent backpack with taped seams and a double bottom made of Dyneema composite hybrid fabric. The Southwest 3400 holds almost 50 litres of luggage inside and a further 10 litres with external pockets and a sophisticated rolltop closure. Ropes, trekking poles and similar items can be attached to the lid strap or on the outside. The rucksack has removable aluminium rods, a padded back and a wide hip belt with two waterproof zipped pockets. On the outside, it has three pockets made of closed stretch fabric so that you won't get caught so easily. Size S. Back length 3843 cm.
in 2 offers
The lowest price for Hyperlite Mountain Gear Southwest 3400 - 55L right now is $579.95 at Adventure Base, compared across 2 retailers.
The all-time low was $530.96 on 23 May 2025 — today's price is 9% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 2 Oct 2026.
Hyperlite Mountain Gear Southwest 3400 - 55L
The 3400 Southwest from Hyperlite Mountain Gear is a particularly lightweight, yet robust and waterrepellent backpack with taped seams and a double bottom made of Dyneema composite hybrid fabric. The Southwest 3400 holds almost 50 litres of luggage inside and a further 10 litres with external pockets and a sophisticated rolltop closure. Ropes, trekking poles and similar items can be attached to the lid strap or on the outside. The rucksack has removable aluminium rods, a padded back and a wide hip belt with two waterproof zipped pockets. On the outside, it has three pockets made of closed stretch fabric so that you won't get caught so easily. Size S. Back length 3843 cm.
The 3400 Southwest from Hyperlite Mountain Gear is a particularly lightweight, yet robust and waterrepellent backpack with taped seams and a double bottom made of Dyneema composite hybrid fabric. The Southwest 3400 holds almost 50 litres of luggage inside and a further 10 litres with external pockets and a sophisticated rolltop closure. Ropes, trekking poles and similar items can be attached to the lid strap or on the outside. The rucksack has removable aluminium rods, a padded back and a wide hip belt with two waterproof zipped pockets. On the outside, it has three pockets made of closed stretch fabric so that you won't get caught so easily. Size S. Back length 3843 cm.
Last updated at 02/10/2026 18:52:29
Hyperlite Southwest 55 Pack
Free delivery between Tue – Fri
2026 Latest Improved Hyperlite Mountain Gear (HMG) Southwest 40L/55L Grid Mesh Pack Backpack White / 55L / S code
Delivery $63.46
| Top Circumference | 101.6cm |
| Bottom Circumference | 85.1cm |
| Height (fully unrolled) | 86.4cm |
| Back Width | 26.7cm |
Hyperlite Southwest 55 Pack
Free delivery between Tue – Fri
2026 Latest Improved Hyperlite Mountain Gear (HMG) Southwest 40L/55L Grid Mesh Pack Backpack White / 55L / S code
Delivery $63.46
| Top Circumference | 101.6cm |
| Bottom Circumference | 85.1cm |
| Height (fully unrolled) | 86.4cm |
| Back Width | 26.7cm |
