Hyperlite Mountain Gear Southwest 40 Backpack - White

The Hyperlite Mountain Gear Southwest 40 is a premium ultralight backpack designed for serious backpackers and thru-hikers. Crafted from Dyneema Composite Fabric, it offers exceptional durability and weather resistance while keeping weight to a minimum. The roll-top closure and removable aluminum stay provide a customizable fit and secure load management.

Advantages

Ultralight yet rugged construction with Dyneema fabric; highly water-resistant with taped seams; removable frame stay for weight savings; roll-top closure for easy access and compression; multiple pockets including hip belt pockets for organization.

Suitable for

• Thru-hiking and long-distance backpacking
• Ultralight backpacking trips
• Adventure travel requiring a durable, weather-resistant pack

Key specifications

• Capacity: 40 L internal + 9.8 L external pockets
• Material: Dyneema Composite Fabric (DCH50 main body, DCH150 bottom)
• Frame: Internal aluminum stay (removable)
• Closure: Roll-top
• Weight: Approximately 1.1 kg (2.4 lbs)
• Recommended load: Up to 18.1 kg (40 lbs)
• Water resistance: Highly water-resistant with taped seams
• External pockets: 2 side, 1 front (solid Dyneema)
• Hip belt pockets: 2 (solid Dyneema)
• Internal pockets: 1 zippered, 1 hydration sleeve
• Hydration compatible: Yes
• Ice axe loops: 2
• Compression: Side straps, top Y-strap
• Shoulder straps: Dyneema Hardline with 3/8" foam
• Hip belt: Dyneema Hardline with 1/4" foam
• Color: White

Recommendations

For best performance, pack heavy items close to your back and use the compression straps to stabilize the load. The removable frame stay can be taken out to save weight on shorter trips.