Item # OSP1J232M

Osprey Duro LT (2026) Hydration Running Pack

Purchase Duro LT (2026)

$109.95

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A combination of breathable mesh, a bounce-free minimalist design, and two included soft flasks make the ultra-lightweight Osprey Duro LT vest pack ideal for trail racing or shorter runs that don't require much in the way of fuel or gear.

Description

Built-in premium hydration performance: The pack includes two BPA-free 500ml soft flasks with high-efficiency bite valve caps that ride comfortably "up front" in dedicated harness pockets with anchored bungee attachment points.
Bounce-free performance at any speed: Designed for a close-to-the-body apparel-like fit, the pack's structured mesh provides a padded, breathable, and chafe-free contact surface. Dual low-profile elastic closure cords allow you to fine-tune fit without restricting movement or breathing. To ensure a proper fit, the pack is available in multiple sizes based on your chest circumference measured at the widest part of your chest. The Small best fits 34.5"-37" chests, the Medium best fits 37"-42.5" chests, and the Large best fits 42.5"-46.5" chests.
Easy access and safe storage for race day essentials: In addition to the flask pockets, the harness has dual front stretch mesh pockets to keep gels, keys, or your phone in easy reach. A pass-through lumbar pocket provides streamlined storage for an extra layer that can be accessed on-the-go with either hand.
Sustainable construction that doesn't compromise on functionality or durability: Tested to ensure that they meet Osprey's demanding technical requirements, the pack's nylon, spandex, and polyester fabrics are 100% recycled and bluesign-approved.

Check out all of these special features!

Check out these other special features!

Vertical-zip front pocket with removable, tuckaway safety whistle
Key clip
Front and rear reflective details

California residents: view proposition 65 Warning

Technical Specs

Best Use

Running/Fitness

Access

Panel loading

Item Dimensions

Small: 15.7" x 13.8" x 1.2"
Medium: 16.5" x 15" x 1.2"
Large: 17.3" x 16.1" x 1.2"

Fits Torso

Small: 34.5"-37" chest sizes
Medium: 37"-42.5" chest sizes
Large: 42.5"-46.5" chest sizes

Hydration Compatible

Yes; 2 Hydraulics 500 mL Soft Flasks included

Sternum Strap

Yes; two adjustable straps

Volume

31 cu in

Warranty

Limited Lifetime

Type

Hydration Running Pack

Material

Main: bluesign APPROVED, 85% 70D nylon (100% recycled), 15% spandex
Mesh: bluesign APPROVED, 100% recycled 75D polyester airmesh

Item Weight

Small: 0.33 lbs
Medium: 0.35 lbs
0.37 lbs

Other

Certified bluesign product

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