Given their reputation for quality and accompanying lifetime guarantee, it’s no surprise that Osprey’s hydration packs have traditionally run to the ‘substantial’ end of things. Function and durability have long been good and the packs have held up very well, but the Colorado company hasn’t always had much to offer the fast and light crowd.
For 2014, this changes with the introduction of the Rev series. Coming in 1.5L, 6L, 12L, and 24L capacities, the Rev packs make use of what Osprey are calling the “Biostretch” harness and body (as opposed to waist) belt. The design is intended to hold the packs’ content against the rider’s back while allowing the pack to move with the rider. A pared-back and baffled Hydraulics LT reservoir does away with much of the Hydraulics model’s structure, contributing to significant weight savings. As an added bonus, the reservoir’s disconnect has been moved to the top of the bag, reducing the likelihood of spillage when removing the hose.