Osprey Exos 58L Ultralight Backpacking Pack — Extended Fit (S/M) Blue Ribbon

Overview

When every ounce matters, the Osprey Exos 58L EF delivers a feather-light carry that still accommodates extended trips between resupply points. Built for experienced hikers, it blends stability with breathable comfort, helping you stay steady on long ascents and through mixed terrain. The extended fit and AirSpeed ventilation work together to promote cooling as you move, making this pack a practical companion for thru-hikes and ultralight setups.

Key benefits at a glance

• Ultralight, stable, and comfortable for seasoned backpackers who value efficiency without sacrificing support
• Extended Fit with a hipbelt that fits up to 70 inches, longer shoulder straps, repositioned pockets, and an extended sternum strap
• Removable floating lid with top- and under-lid pockets for flexible packing options
• Integrated FlapJacket cover enables lidless use while keeping gear protected
• Stow-on-the-Go trekking pole attachment keeps poles within easy reach
• Weight around 2.84 lb with compact dimensions (30.3 H x 14.6 W x 13 D in)

Design and use-case versatility

The Exos 58 EF is designed to scale with your legs and your kit. Great for long-distance itineraries that require reliable load control, it pairs a stable carrier with a breathable backpanel to help regulate comfort on warmer days or steep grades. It also adapts well to lightweight gear lists, including compact tents, minimalist sleep systems, and essential cooking gear for multiple days on trail.

Practical configuration options

• Remove the floating lid to shave weight and rely on the FlapJacket for lidless carrying
• Use the lidless setup for ultralight missions or fast-moving days on the trail
• Take advantage of the Stow-on-the-Go feature to manage trekking poles while you navigate tricky sections

Who is this pack for

Rugged, experienced hikers who want a scalable pack that fits a range of torso and hip sizes. If you regularly hike multi-day routes with limited resupply options, the Exos 58 EF offers a balance of capacity, comfort, and adaptability without excessive weight.

Specs and notes

Item Dimensions: 30.3 H x 14.6 W x 13 D in; Item Weight: 2.84 lb. An integrated backpanel design and stretch-friendly fit contribute to a streamlined, road-tested feel on rough terrains. This model supports a large-day approach when you need dependable organization without bulk.