Nathan's iconic featherweight hydration vest has been upgraded yet again; this time with an even lighter and more breathable perforated back panel to make your next 100-miler a breeze.

• Patented 3-way Propulsion Harness Stabilizes side-to-side / up-down movement of bladder and other contents for a bounce-free ride.
• Wall mesh shoulder straps are highly breathable.
• One front bottle pocket and one front zip smart phone-compatible pocket.
• Mesh stash pouch over left front pocket fits several gels or empties.
• Rear external shock cord for increased capacity.
• Internal rear stash pocket and key clip. Easy on/off with full side adjustability.
• Reflective trims.