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Light on the scale but not on comfort, the ultralight Osprey Exos 58 pack offers a ventilated suspension system that evenly distributes weight and offers a supportive fit for logging big miles.

  • Features

    • Further reduce pack weight to 2 lbs. 5.3 oz. by removing the top lid, sleeping-pad straps and compression straps
    • AirSpeed™ Suspension system keeps the weight off your back and increases ventilation with a 4mm alloy frame and a shaped, tensioned breathable-mesh back panel
    • Cushioned ExoForm™ harness is made of seamless, layered mesh
    • Adjustable sternum strap has an integrated safety whistle on buckle and a stretch-mesh pocket on one harness strap holds your energy gels
    • ExoForm™ hipbelt made of seamless, layered mesh has ErgoPull™ closure to customize the fit around your hips
    • Floating lid has zippered pockets on top and under it; when you want to minimize weight, remove the lid and replace it with the protective FlapJacket™ cover
    • Stow-on-the-Go™ trekking pole attachment allows you to quickly stow your poles whenever you need your hands free
    • Hydration-compatible design places the reservoir (sold separately) in a cavity behind the back panel for easy refilling
    • Dual strippable compression straps on the sides cinch up extra pack volume to keep it closer to your body
    • Dual-access stretch-mesh side pockets with InsideOut™ side compression straps store water bottles, snacks other gear
    • Front stretch-mesh pocket stores rain gear for easy access when skies darken, or wet gear after the downpour stops
    • Top lid and sides of pack have loop attachment points for external gear storage; bungee tie-off for ice-axe attachment


    View all Osprey Backpacking Packs
  • Technical Specs

    Best Use


    Frame Type

    Internal Frame



    Gear Capacity (L)

    S: 55 liters

    M: 58 liters

    L: 61 liters

    Gear Capacity (cu. in.)

    S: 3,356 cubic inches

    M: 3,539 cubic inches

    L: 3,722 cubic inches


    S: 2 lbs. 10 oz.

    M: 2 lbs. 11 oz.

    L: 2 lbs. 12 oz.

    Fits Torso Length (in.)

    S: 16 - 18 inches

    M: 18 - 21 inches

    L: 20 - 23 inches

    Fits Waist/Hips

    S: 24 - 45 inches

    M: 27 - 48 inches

    L: 29 - 55 inches



    Frame Material


    Reservoir Compatible


    Suspended Mesh Back Panel


    Pack Access



    S: 29.5 x 16.1 x 14.6 inches

    M: 31.5 x 16.1 x 14.6 inches

    L: 33.5 x 16.1 x 14.6 inches



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