Distance 4 Hydration Vest M Color:optical yellow The elastic band helps it

The elastic band helps it fit snugly round the backpack

The lithium packs rcB 2000 can be used for all models of Lenz Heat Socks

treat yourself to effective thermoregulation and outstanding wearing comfort with the X-BIONIC® APANI® 4

Adjustable draw cord at bottom of jacket

Distance 4 Hydration Vest M Color:optical yellow The elastic band helps itEngineered for long distance races and fast paced adventures, the Gen 2 Black Diamond 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 f