STM Trilogy Backpack | Fits Up To 15"



Omne trium perfectum. It’s said that good things come in threes, so it’s no surprise you’ll discover plenty of great stuff in our aptly named Trilogy backpack. From a trio of storage compartments (two main ones, plus a full-size front pocket) to a triad of additional pockets (internal mesh, external drop, overflow stash) and much, much, much more. Designed to fit your lifestyle, we consider it a triumph of functionality and style.


  • Main material(s): 100% polyester
  • Outer dimensions: H 18.1 x W 11.4 x D 5.9 in / H 46 x W 30 x D 16 cm
  • Capacity: 24L
  • Weight: 1.41 lbs / 0.64 kg
  • Overflow stash pocket for easy access to quick grab items
  • External drop pocket
  • Internal zippered mesh pocket
  • Webbing loop for carabiner, bike light, or other accessories
  • Convenient key clip/fob