OMM Marathon Pack Classic 25 Grey

A multiday running sack with a shorter backlength and smaller capacity than the Classic 32L but with all the same fixtures and fittings. 25 litres.


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  • OMM Marathon Pack Classic 25 Grey
  • £89.99
  • 2 in stock
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OMM Marathon Pack Classic 25 Grey Video


With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

You Pre-Order is prioritised (at no additional charge); meaning that, as soon as the product arrives with us, we can wrap it straight back up and get it sent out to you - it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery Dates

Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.

The Current Estimated Delivery Dates for OMM Marathon Pack Classic 25 Grey is

OMM Marathon Pack Classic 25 Grey Description

  • Brand : OMM
  • Season : Not Applicable
  • Code : OMM CL25GREY
  • Packaged Weight : 0.8KG
  • A shorter backlength, smaller capacity version of the Classic 32L, with all the same fixtures and fittings.

    Used around the world for mountain marathons, extreme races, ultra’s, biking, hiking, skiing and many other activities – including ascents to the summit of Everest! A simple, effective design with extensive mesh external carrying capacity that is hard to beat.

    • Leanweight chassis.
    • High wicking mesh panels to hip-belt and back.
    • Universal Gear Rail (a piece of daisy chain tape on edge of base).
    • Reflective detailing.
    • Hydration bladder tube can be routed over or under shoulder (bladder not included).
    • Zipped top pocket with key ring.
    • Top mesh pocket with Velcro-style closure.
    • Two zipped belt pockets.
    • Two angled stretch mesh bottle pockets for on the move accessibility.
    • Large front mesh stash pocket with compression.
    • Whistle on chest strap.
    • Back padding is a Duomat (OMM's folding lightweight camping mat - makes an 80cm long mat).

    Fabrics 210T / HTTF.
    Back length 45cm.
    Capacity 25 litres

    Full weight 670g. Stripped down weight 540g.

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    Technical Information

    OMM Marathon Pack Classic 25 Grey
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