Southwest 55


The 3400 Southwest Hyperlite backpack is a tough, durable pack for travelling through dense and rugged trails. Available in three sizes and two colour options. 


The best mountain gear needs to be the perfect combination of lightweight and durable. Right in the middle of those two characteristics, the Hyperlite Mountain Gear 3400 Southwest is a versatile piece of hiking equipment that can hold its own against the toughest vegetation without weighing you down.


The middle-size of the Southwest range, the 3400 Hyperlite backpack offers a 55L internal volume – slightly more than the Hyperlite Southwest 2400 (40L) and slightly less than the Hyperlite Southwest 4400 (70L). 

Choose the correct Hyperlite backpack size to fit your body type by measuring your torso length down the curve of your spine and comparing to the following size guide.

  • Small (15.0” – 17.0” torso)
  • Medium (17.0” – 19.0” torso)
  • Large (19.0” – 21.0” torso)


The Hyperlite mountain gear 3400 Southwest backpack is made from the brand’s own Dyneema® Composite Fabrics, which are incredibly strong, sturdy and water resistant.


This Hyperlite backpack is suitable for:
Guided walks in Snowdonia

Additional information


Large, Medium, Small, Tall


Black, White