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M1 Messenger


An ultralight, all-weather EDC.

Made from Expedition Grade Dyneema® for exquisite performance, with features stripped down to the bare essentials. A lightly padded base protects your gear. Streamlined for both avid cyclists and urban explorers.

The M1 Standard is optimized for right-handers, carried cross-body over the left shoulder. The M1 Lefty is carried over the right shoulder. 


M1 Messenger Bag Standard M1 Messenger M1 Messenger Interior
M1 Messenger Bag Standard M1 Messenger M1 Messenger Interior
M1 Standard


  • Waterproof, Expedition Grade Dyneema® shell
  • About half the weight of a conventional messenger bag. Designed from the ground up to minimize bulk, in form and materials.
  • Left/Right dedicated carry configuration
  • Integrated padded shoulder strap
  • Padded back and bottom panels
  • Tapered front flap with snap closure for increased weatherproofing
  • Long lasting, softer hook and loop
  • Smooth, low-profile flap buckles
  • No exterior branding

Handbuilt in California


  • Dimensions: 17W x 11H x 5D inch / 43 x 28 x 13 cm
  • Volume: 15-17L
  • Weight: 1.05 lb / 474 g


  • Body: Expedition Grade Dyneema® composite fabric.
    Starts a little stiff, and takes a month of daily use to reach a matte crumpled state
  • Lining: X-Pac silver grey
  • Shoulder strap: Zotefoam encapsulated in tubular webbing, with an aircraft grade aluminum compression cam buckle
  • Back/bottom padding: Ultralight closed-cell Zotefoam
  • Front zipper: YKK® Uretek water resistant zipper


M1 Interior


Left/Right Optimized Configuration

Simplified design through dedicated left- and right-handed versions.

The M1 Standard is optimized to carry on the left shoulder across the body, preferred by the majority of right-handed people. We also offer a dedicated M1 Lefty bag for carrying on the right shoulder.



  • Front waterproof stash pocket
  • Interior comfort-stretch zipped pocket
  • Interior organizer panel for phones and small items
  • Padded tech sleeve holds standard 13" or 15" MacBook Pro
SDRT M1 Messenger SDRT M1 Messenger SDRT M1 Messenger Route out M-6 night riding

Photos: days in San Francisco, nights in Shanghai.