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HPL #020 Hydration Vest

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Light as a feather and fit for staying hydrated during a road or trail race.

Nathan updated the HPL #20 Hydration Vest since last year, shaving a few ounces off the weight by using lighter materials and a lighter-weight fabrication process throughout. The mesh harness on this ultra-style running vest breathes and dries quickly to control sweat and heat, and features two-way side adjustments that allow you to perfect the fit on the fly. Simple and secure, these side adjustments and the quick-clip chest strap mean that you can get this pack on and off in a flash when you hit an aid station. A hand-held or waist belt will keep you supplied with water, but when speed is of the essence and you're covering massive distances, there's nothing like a race vest with a little extra storage.

But don't take our word for it; consider that the Nathan HPL #20 Hydration Vest is a favorite of Dana Miller, four-time winner of the Wasatch 100 endurance race—there aren't many people on Earth capable of such a feat. For those new to the Nathan line, this is its lightest bladder-compatible racing vest.


  • Three-way Propulsion Harness moves in harmony with your shoulders and upper back for long-distance comfort
  • Lightweight harness and pack materials and fabrication technique
  • Bladder-compatible design for hands-free hydration; 2-liter bladder included
  • Repositioned hydration tube exists from the top of the pack instead of the side
  • Easy-adjust system uses dual buckle-adjustments at the side and one across the chest
  • Front stretch-mesh pockets and two rear zippered compartments hold essentials
  • Item #NAT0057
Wall mesh
Reservoir Volume
2 L
1 front mesh, 2 zippered rear, 1 zippered front
Locking Bite Valve
Claimed Weight
10 oz
275 cu in
Recommended Use
racing, long-distant running
Manufacturer Warranty