Product Description
Redesigned for long-distance hikers and thru-hikers, the Unbound 40 and 55 are upgraded with extremely durable Dyneema® Woven Composite 3.9, making them lighter, stronger, and more comfortable. Two ergonomically curved removable stays, an improved hip belt, and wider, more naturally curved shoulder straps enhance support and comfort when carrying heavier loads. A streamlined construction with internal seam taping and low-profile sewn-in webbing loops creates a cleaner, more functional design. A fully removable and customizable compression system makes it easier to secure trekking poles or oversized water bottles, while battle-tested features like the dual-entry front pocket, bottom pocket, V-shaped hip belt pull, and easy-access side water bottle pockets remain intuitive and efficient.
Key Features:
· Lighter Weight: Featuring the new Dyneema® Woven Composite 3.9, the upgraded Unbound 40 and 55 offer superior trail performance and comfort while weighing less than the original versions.
· More Support: Two ergonomically curved removable stays provide greater support when carrying heavier loads; redesigned wider shoulder straps feature a more natural curve for a better fit.
· Streamlined Appearance: The new, improved construction allows for internal seam taping, eliminating external binding; new low-profile and convenient sewn webbing loops create a cleaner look.
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Features
Top Compression Strap
Top Y-strap compression design for securing gear.
Shoulder Straps
Redesigned shoulder straps with an adjusted shape that creates a more natural curve around the neck, providing enhanced comfort. More dense reinforced stitching points offer more sternum strap adjustment options, allowing you to achieve a perfectly customized fit.
Front External Pocket
Dual-entry Dyneema stretch mesh front pocket keeps your gear organized and easily accessible.
Side External Pockets
Large and easy-to-access side pockets allow you to quickly retrieve water bottles or other essentials while on the move.
Webbing Loops
Low-profile vertical and horizontal webbing loops allow you to attach additional gear, customizing the pack for specific trips.
Compression System
Roll-top closure system with removable side compression straps allows for adjustable compression to accommodate different load volumes.
Hip Belt
Removable hip belt provides better padding and allows you to fine-tune the pack's fit for optimal comfort.
Back Panel
Integrated foam back panel provides structural support for comfortable carrying.
Stays
Two removable, ergonomically curved aluminum stays provide support and help distribute weight. Stays can be removed to further reduce weight.
Lashings
Removable elastic lashings secure tall, long items in side pockets, keeping them stable and compressed.
Top Closure
Removable roll-top closure system with vertical compression straps allows you to adjust the pack's volume, keeping the load compact, stable, and weather-protected.
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Specifications
40L Backpack
· Capacity
40L
External Capacity
9L
Load Capacity
Up to 40 lbs (approx. 18.1 kg)
Weight
27.3 oz | 773.9 g
Materials
Dyneema® Woven Composite 3.9, 100D Dyneema® Gridstop, Dyneema Stretch Mesh
Back Width
10.5 inches | 26.7 cm
Height (fully extended)
32.5 inches | 82.6 cm
Top Circumference
36.5 inches | 92.7 cm
Bottom Circumference
36.5 inches | 92.7 cm
Origin
Mexico
Weight is the average weight for size M
55L Backpack
· Capacity
55L
External Capacity
9L
Load Capacity
Up to 40 lbs (approx. 18.1 kg)
Weight
28.9 oz | 819 g
Materials
Dyneema® Woven Composite 3.9, 100D Dyneema® Gridstop, Dyneema Stretch Mesh
Back Width
10.5 inches | 26.7 cm
Height (fully extended)
36.5 inches | 92.7 cm
Top Circumference
41 inches | 104.1 cm
Bottom Circumference
36.5 inches | 92.7 cm
Origin
Mexico
Weight is the average weight for size M
