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.