Orange Mud Gear Vest Pro
The Gear Vest Pro is designed to be small on your back, but big on storage for endurance events. We took the same tiny footprint of our Gear Vest, but added rear cargo like the Endurance Pack (but we actually made it a bit more roomy than the EP so you can really load this up!). Plus we added trekking pole kit attachment areas on the front and back in 8 locations (kit purchased separately).
Specs:
Bladder size: 1L included.
Storage space: 5L