ULTRA20

$252.00 USD$360.00 USD

The ultralight and waterproof mountaineering backpack

The ULTRA20 is a mountaineering backpack built for harsh conditions thanks to its waterproof construction. With a volume of 20 L for 345 g, it carries the bare essentials while keeping weight to a minimum.


Water resistance: 20,000 mm

Minimum weight: 345 g (12.2 oz.)
Equipped weight: 520 g (1 lbs. 2.3 oz.)
Ski & ice axe carry system: 66 g (2.3 oz.)
EVA back panel: 107 g (3.8 oz.)
Aluminum frame: No
Helmet carry system: Yes

Volume

20+5 L

Weight

345 g

Trump card

Watertight construction

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Fully waterproof construction

20 + 5 L capacity

Durable aluminum buckles

Removable waist belt and accessories

Internal pocket

Pocket under the top lid

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FIELD-TESTED

TECHNOLOGIES

Bio-based Dyneema®

Bio-based Dyneema® is a more sustainable version of conventional Dyneema®, made from renewable raw materials, primarily derived from forestry industry residues, rather than fossil resources.

This material is based on a production process in which ethylene, a key ingredient in Dyneema®, is obtained from plant biomass instead of oil. This approach significantly reduces the carbon footprint while maintaining the exceptional performance of conventional Dyneema®: extreme tensile strength, lightness, impermeability, and durability.

Certified by ISCC (International Sustainability & Carbon Certification), bio-based Dyneema® is part of a commitment to a circular economy and CO₂ emission reduction, offering a more responsible alternative without compromising performance.

Exploded view of the Dyneema_X laminate
BODY OF THE BAG

Dyneema Composite Fabric Hybrid (DCF H)

Samaya chose the Dyneema® Composite Fabric Hybrid for the unique combination of its 2 materials. On the outer face, the Woven Polyester provides increased abrasion resistance compared to standard Dyneema® Composite Fabric. On the inner face, the Dyneema® Composite Fabric guarantees waterproofing and mechanical strength. Finally, the stiffness of this material allows for better handling and ease of use regardless of the bag's fill level.

BOTTOM OF THE BAG

Dyneema Woven Fabric (DWF)

Samaya has developed Dyneema® Woven Fabric using 300D Dyneema® yarns, woven to create a material that is durably resistant to all usage-related stresses (abrasion, tearing, puncturing). It is the most robust material used by Samaya to date.

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