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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 over the left shoulder. The M1 Lefty is carried over the right shoulder. 


M1 Messenger Bag Standard M1 Messenger
M1 Messenger Bag Standard M1 Messenger
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" laptop
SDRT M1 Messenger SDRT M1 Messenger SDRT M1 Messenger Route out M-6 night riding

Photos: days in San Francisco, nights in Shanghai.