OMM Unisex Classic Marathon 25L Day Sack  £81.00

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  • Product Description
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OMM 25 -The Classic Mountain Marathon Pack For A New Generation

First developed in 1973 to a specification set by Olympian and later London Marathon founder, Sir Chris Brasher, The Classic was the first pack to look at weight as a key part of a bag’s functionality. Now in this latest iteration, The Classic balances, weight, accessibility on the move, comfort (at all speeds of movement) and multi-function componentry.

This is the pack that just works. Perfect for an OMM but also at home on something easier like the MDS, UTMB, Spine Race, Dragons Back, Grand2Grand, 4 Deserts, Fire & Ice Ultra, Everest, Camino.
It just does everything really well…. It’s a Classic!

  • A Classic Design Reimagined - We have built on our Mountain Marathon experience to create a modern pack for the demands of multi-day and long distance runners looking for comfort and capacity.
  • Accessible - Large mesh pockets on the side and an extra large front dump pocket are perfect for stashing kit on the go while zipped hip pockets and lid are ideal for smaller essentials.
  • Versatile - Strip weight and bulk by removing the Duomat and waistbelt pockets to create a streamlined pack to suit your needs. Or add accessories such as Go Pod and Compressor Pod to increase capacity on kit intensive objectives and long haul adventures.
  • Bonus Items - Sleep Mat, Waistbelt & Two Pegs Included: One way to cut weight is to make components multi-functional. Experienced competitors don’t see an empty rucksack in their tent but instead extra warmth for feet or padding as a pillow. OMM does the same with its design so the Classic includes the Duomat fold out sleep mat which is your back padding and minimal sleep insulation (but also a great seat for a picnic or when you are waiting for a helicopter pickup from a glacier. The removeable waist belt can be used on its own without the pack to carry your essentials on a Fell race or 5km and the pegs that attach it all together are two less you need to carry to put up your tent. Or remove them all and be floaty light!


  • Capacity: 25 litre
  • EVA padded shoulder harness
  •  UGR – Universal Gear Rail
  • Large rear dump pocket
  • Zipped pockets on lid and belt
  • Speed opening buckle system
  • Removable waist belt pockets – Inc. 2 x aluminium tent pegs (double as bottle openers)
  • Stretch mesh side pockets
  • Removable Duomat back pad/sleep mat

Watch this short video to find out more about the features and benefits of the OMM Classic Mountain Marathon Packs:

Technical Specifications:

  • Capacity: 25 litre
  • Fabric: Nylon 210T & TPU reinforced Nylon
  • Full Weight: 715g
  • Leanweight: 405g
  • Back Lenght: 45cm
  • 3D mesh Harness


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