Black Diamond Distance 4 Hydration Vest Firm 360° sidewall provides protection and

360° sidewall provides protection and support

Sizes (head circumference): S/M 21

Accuracy ~ ± 0

Elastic cuffs with thumb holes

Heat dispersing fins mounted in and around the light passively dissipate heat

Black Diamond Distance 4 Hydration Vest Firm 360° sidewall provides protection andEngineered for long distance races and fast paced adventures, the Gen 2 Distance 4 Hydration Vest has a running harness suspension made from stretchy, comfortable material that extends from the sides to the back panel with self bound stretch mesh edges for ultimate comfort on the move. An over the shoulder Z Pole carry system can be easily deployed on the go, while high stretch side panels extend from the harness itself for an improved fit while on