The OMM TrailFire Hydration Vest is whatever you want it to be with a vast array of attachment points and compatibility with a range of OMM add-ons (sold separately). The vest features 4 front pockets, including 2 with secure closures, and a large dump pocket on the back. The TrailFire is also compatible with OMM’s Compressor Pod and FlexiFlask bottles. The minimalist TrailFire weighs in at just 125g, with a breathable stretch mesh construction that ensures long-lasting running comfort. Plus, the vest’s fitting system uses a replaceable bungee tensioning system to keep the vest stable.