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 L. Back length 4853 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 L. Back length 4853 cm.
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The lowest price for Hyperlite Mountain Gear 3400 Southwest Pack (55L) White / Large right now is $535.00 at 馨營戶外用品 Ultra Hing Outdoor.
The all-time low was $535.00 on 16 Feb 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 19 Feb 2026.
Hyperlite Mountain Gear 3400 Southwest Pack (55L) White / Large
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 L. Back length 4853 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 L. Back length 4853 cm.
Last updated at 19/02/2026 14:56:47
Hyperlite Mountain Gear 3400 SOUTHWEST 55L Southwest 55L lightweight backpack UL Gear Hong Kong agent 白 / L size (19-21) L (48-53cm)
Free delivery
| Top Circumference | 101.6cm |
| Bottom Circumference | 85.1cm |
| Height (fully unrolled) | 86.4cm |
| Back Width | 26.7cm |
Hyperlite Mountain Gear 3400 SOUTHWEST 55L Southwest 55L lightweight backpack UL Gear Hong Kong agent 白 / L size (19-21) L (48-53cm)
Free delivery
| Top Circumference | 101.6cm |
| Bottom Circumference | 85.1cm |
| Height (fully unrolled) | 86.4cm |
| Back Width | 26.7cm |
