---
title: "Hyperlite Mountain Gear Southwest 55"
name: "Hyperlite Mountain Gear Southwest 55"
brand: "Hyperlite Mountain Gear"
description: "Ultralight backpack for multi-day hikes and long-distance trails from the legendary brand Hyperlite Mountain Gear."
handle: "hyperlite-mountain-gear-southwest-55l"
sku: "3-10255-1"
ean: "653341143624"
gtin: "653341143624"
canonical_url: "https://gramino.com/p/hyperlite-mountain-gear-southwest-55l"
html_url: "/p/hyperlite-mountain-gear-southwest-55l"
md_url: "/p/hyperlite-mountain-gear-southwest-55l.md"
locale: "en"
market: "eu"
availability: "OutOfStock"
item_condition: "NewCondition"
category: "Backpacks"
category_path: "/c/backpacks"
breadcrumbs:
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    url: "/"
  - name: "Backpacks"
    url: "/c/backpacks"
  - name: "Hyperlite Mountain Gear Southwest 55"
    url: "/p/hyperlite-mountain-gear-southwest-55l"
last_updated: "2026-10-13"
---

# Hyperlite Mountain Gear Southwest 55

Brand: Hyperlite Mountain Gear · Category: [Backpacks](/c/backpacks.md)
Backpack size: Medium, Large, Small, Tall · Seam-sealed: Yes · Waterproof material: Yes

## Offer

- Availability: Out of stock
- Condition: New
- Buy on the website: [HTML product page](/p/hyperlite-mountain-gear-southwest-55l)

## Description

Ultralight backpack for multi-day hikes and long-distance trails from the legendary brand Hyperlite Mountain Gear. The Southwest is our preferred backpack for traveling along densely forested trails in the harshest climatic conditions. HMG relies on a simple, proven design and the best materials. The backpack is constructed from super durable, lightweight, and waterproof Dyneema® material. The black version uses an even more durable but slightly heavier material – DCH150.

The most durable backpack from HMG for multi-day hikes and long-distance trails for true ultralight and thru-hiking enthusiasts.

## Durable backpack for trekking

The Southwest backpack with a volume of 55 liters **offers a wide range of options and uses**. Thanks to the roll-top closure and two compression straps on each side of the backpack, you can easily reduce or increase the volume as needed. When you don't need the extra volume, **you can roll the roll-top closure down** enough to make the volume resemble that of a smaller backpack [Southwest 40](/p/hyperlite-mountain-gear-southwest-40l).

The Southwest 55 backpack is best suited for treks characterized by dry environments, rocky and stony surfaces, and overgrown trails with dense vegetation.  It finds its use in demanding **weekend hikes, multi-day mountain crossings, and long-distance trails**.

Backpacks from Hyperlite Mountain Gear are among **the most used on long-distance trails in the USA**, such as the Pacific Crest Trail and Continental Divide Trail, which, in our opinion, speaks for something. (This information is based on annual surveys on the [halfwayanywhere.com](https://www.halfwayanywhere.com/trails/continental-divide-trail/cdt-thru-hiker-survey-2020/#thru-hiking-gear) blog.)

[Video](https://www.youtube.com/watch?v=-M8wBpVXeCs)

## Specifications

**External pockets**: The side pockets are made from a very durable strong material, Hardline with Dyneema®, which allows the backpack to withstand pushing through narrow overgrown trails.

**Hydration reservoir compatibility**: Inside the backpack, there is a mesh pocket measuring 20,3 x 35,6 cm for a hydration bladder and a loop for hanging it. On one side, there is an opening for the drinking tube covered with a flap and Velcro.

**Hip belt and hip padding**: The hip belt is padded with a firm yet comfortable closed-cell foam and is equipped with a spacer mesh.

**Loops**: Loops for attaching an ice axe and a central loop between the shoulder straps for lifting the backpack.

**Top compression strap**: Y-shaped top compression strap – designed to secure or attach gear (jackets, tents, sleeping pads, etc.).

**Chest strap**: Vertically adjustable and removable chest strap with self-tensioning elastic strap.

**Backpack reinforcement**: Two removable aluminum stays are inserted in separate sleeves and secured with Velcro.

**Reinforcement of stressed areas**: Reinforced bartack stitching.

**Daisy Chains**: Daisy Chains on the shoulder straps allow for attaching pockets, for example, [Hyperlite Mountain Gear Shoulder Pocket](/p/hyperlite-mountain-gear-shoulder-pocket).

**Zippered pockets**: Two spacious zippered pockets on the hip belt made of Hardline material with Dyneema® featuring waterproof #5 YKK zippers and an HMG pull tab.

**Top closure**: Roll-top closure system with Velcro and straps with buckle for vertical compression.

**Back panel**: The back of the backpack is padded with an integrated thin but stiff foam panel with a thickness of 0,63 cm.

**Side straps**: There are 2 side compression straps on each side for securing gear and horizontal compression.

**Shoulder straps**: Shoulder straps made of Hardline material with Dyneema® with padding made of comfortable closed-cell foam and spacer mesh.

**Buckles**: Four external buckles on the back of the backpack for additional straps – [Gear Pack Accessory Straps](/p/hyperlite-mountain-gear-pack-accessory-straps) (not included in the package).

**Seam sealing**: All side seams and seams behind the attached components of the backpack are sealed with waterproof tape.

**Accessory options**: [Shoulder Pocket](/p/hyperlite-mountain-gear-shoulder-pocket), [Versa](/p/hyperlite-mountain-gear-versa), [Pods](/p/hyperlite-mountain-gear-pods).

**Waterproof**: Yes.

## Technical parameters

- **Internal** **volume**: 55 liters
- **External** **volume**: 9,8 liters
- **Weight**: 989 grams (size M)
- **Load** **capacity**: up to 18,1 kg
- **Back panel width**: 26,7 cm
- **Upper circumference of the backpack**: 101,6 cm
- **Bottom circumference of the backpack**: 85,1 cm
- **Height of the fully unrolled backpack**: 86,4 cm

The specified parameters are for size Medium.

## Materials

Dyneema® fiber is a revolutionary material not only in the outdoor industry. With its remarkable strength-to-weight ratio, it is **the** **strongest fiber in the world**. Dyneema® fibers are 15x stronger than high-quality steel, lightweight, abrasion-resistant, waterproof, and resistant to UV radiation and chemicals.

The **HMG Southwest** backpack (available in both white and black) is constructed from hybrid composite Dyneema® fabrics—**DCH150** (170 g/m2), which is created by merging and laminating additional layers with Dyneema® fibers. This material excels in **high abrasion resistance, exceptional strength, excellent rip-stop properties, and impermeability to moisture**.

Although the material itself is 100% waterproof, stitching creates tiny perforations. While most (more than 90%) seams in the backpack are taped, it cannot be considered completely waterproof. For full protection against water and moisture, we recommend using the backpack with [waterproof dry bags](/c/gear/drybags-and-organisers).

## How to choose the size?

| Backpack size | Length of the torso |
| --- | --- |
| Small | 38–43 cm |
| Medium | 43–48 cm |
| Large | 48–53 cm |
| Tall | more than 53 cm |

**If you're uncertain about choosing the right size, you can contact us. We would be happy to help you.**

[Video](https://youtu.be/rs0vA343neo)

## Specs

- Color: White, Black
- Backpack size: Medium, Large, Small, Tall
- Seam-sealed: Yes
- Waterproof material: Yes
- Backpack frame: Aluminum frame
- Backpack padding: Yes
- Backpack removable frame: Yes
- Maximum load capacity: 18.1 kg
- Sex: unisex
- Material: Hardline with Dyneema, DCH150
- Material composition: Nylon, Polyester, Ultra High Molecular Weight Polyethylene (UHMWPE)
- Volume: 64.8 l
- External volume: 9.8 l
- Internal volume: 55 l
- Weight: 859 g
- Woocommerce product id: 22454
- Brand: Hyperlite Mountain Gear

## Variants

- Hyperlite Mountain Gear Southwest 55 - Small, White · SKU 3-10255-1 · EAN 653341143624 · €423.20 · Out of stock · Small, White
- Hyperlite Mountain Gear Southwest 55 - Large, White · SKU 3-10255-3 · EAN 653341143822 · €423.20 · Out of stock · Large, White
- Hyperlite Mountain Gear Southwest 55 - Medium, White · SKU 3-10255-2 · EAN 653341143723 · €423.20 · Out of stock · Medium, White
- Hyperlite Mountain Gear Southwest 55 - Tall, White · SKU 3-10255-4 · EAN 653341143921 · €423.20 · Out of stock · White, Tall
- Hyperlite Mountain Gear Southwest 55 - Medium, Black · SKU 3-20255-2 · EAN 653341144126 · €465.10 · Out of stock · Medium, Black
- Hyperlite Mountain Gear Southwest 55 - Large, Black · SKU 3-20255-3 · EAN 653341144225 · €465.10 · Out of stock · Black, Large
- Hyperlite Mountain Gear Southwest 55 - Tall, Black · SKU 3-20255-4 · EAN 653341144324 · €465.10 · Out of stock · Black, Tall
- Hyperlite Mountain Gear Southwest 55 - Small, Black · SKU 3-20255-1 · EAN 653341144027 · €401.60 · Out of stock · Black, Small

## Related

- [Hyperlite Mountain Gear Windrider 55](/p/hyperlite-mountain-gear-windrider-55l.md)
- [Hyperlite Mountain Gear Bottle Pocket](/p/hyperlite-mountain-gear-bottle-pocket.md)
- [Hyperlite Mountain Gear Southwest 55 (2025)](/p/hyperlite-mountain-gear-southwest-55.md)
- [Hyperlite Mountain Gear Shoulder Pocket](/p/hyperlite-mountain-gear-shoulder-pocket.md)
- [Hyperlite Mountain Gear Camera Pod](/p/hyperlite-mountain-gear-camera-pod.md)
- [Hyperlite Mountain Gear Bottle Pocket](/p/hyperlite-mountain-gear-bottle-pocket.md)
- [Hyperlite Mountain Gear Unbound 55](/p/hyperlite-mountain-gear-unbound-55.md)
- [Hyperlite Mountain Gear Shoulder Pocket](/p/hyperlite-mountain-gear-shoulder-pocket.md)

## Shipping and returns

- [Shipping and payment](/shipping-payment)
- [Returns](/return-order)

## Images

- ![Hyperlite Mountain Gear Southwest 55](https://media.gramino.com/medusa/cdc3a31cd6ffaab2f03b22ab25106b87-01KWHVMG41ZDN96D4ZEF4DGJ90.jpg)
- ![Hyperlite Mountain Gear Southwest 55](https://media.gramino.com/medusa/976d5cc9e1ec953d7106dc8f016b22cf-01KWHVMG4QBQBW15JACYFMQ8AA.jpg)
- ![Hyperlite Mountain Gear Southwest 55](https://media.gramino.com/medusa/b10ec050d9b7654dd52624e75e644d88-01KWHVMG6JKXV3MSZP0RNBEKAN.jpg)
- ![Hyperlite Mountain Gear Southwest 55](https://media.gramino.com/medusa/551f8477acf16eec2389878421d058b2-01KWHVMG8BRKDGN8JS4ZAP4FX9.jpg)
- ![Hyperlite Mountain Gear Southwest 55](https://media.gramino.com/medusa/73069dbc6d3244bd8a87019b6a39e880-01KWHVMGCYGN4MKNR8850N8S8R.jpg)
- ![Hyperlite Mountain Gear Southwest 55](https://media.gramino.com/medusa/12147cfe688f8c6f3b396110bd9899a1-01KWHVMGEP0WCYCJ20FRB8BHF9.jpg)
- ![Hyperlite Mountain Gear Southwest 55](https://media.gramino.com/medusa/a36ced6875ab5ba403a41bc6832418e3-01KWHVMGDCX4PDZSF2VX347XH1.jpg)
- ![Hyperlite Mountain Gear Southwest 55](https://media.gramino.com/medusa/5edf54f33e7733b9447d760b6ab993cc-01KWHVMGDYCN37EKHW2F1N4YQB.jpg)

## Identifiers

- SKU: 3-10255-1
- EAN: 653341143624
- Handle: hyperlite-mountain-gear-southwest-55l
- Brand: Hyperlite Mountain Gear

This product is also available as [HTML](/p/hyperlite-mountain-gear-southwest-55l).

Category: [Backpacks](/c/backpacks.md) · [Sitemap](/sitemap.md)

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