The Nathan HPL #020 2.0L Men's Race Vest provides a new level of comfort for runners.  

3-way Propulsion Harness has a stretch rubber device that lets the harness stretch and move with you, yet provides excellent stability. A 2 liter hydration bladder with screw-top closure and bite valve with shut off valve makes hydrating easy.

Twin front holsters for carbo-gel and/or GPS and zippered front pocket provide easy access to small items. Velcro-adjustable front closure gives a custom fit. Two zippered rear compartments give enough storage capacity for extended runs. Lightweight, breathable Wall Mesh with soft perimeter binding is as comfortable and non-chafing as excellent performance apparel. Lightweight at only 9.7 ounces.

Unrestricted Innovation
Simply put, the Propulsion Harness­™ (patent pending) moves with you, not against you. Unlike traditional shoulder straps, the Propulsion Harness works in harmony with the back and forth movement of your shoulders and upper torso, preventing the pack from "riding up" or swaying back and forth. And thank to two inches of frictionless travel, from 3-way configuration, each shoulder strap moves independently, offering unmatched freedom of movement without reducing pack stability.

Dana Miller
The Wasatch 100 is one of the world's toughest hundred-mile trail runs. A lot of runners dream of finishing it "just once." Nathan's product testing critic, Dana "Mud n' Guts" Miller is shooting for 20 finishes. With 16 behind him, including 5 victories, he's discovered that a lightweight hydration vest can cut down on the nausea sometimes caused by a waist pack. The HPL #020 was designed to help Mud n' Guts survive another four Wasatch 100s. He suggests you use it on your next hundred-miler, whether it's your first or your 25th.