Nathan Pinnacle 4L Hydration Race Vest Size:XS or base layers without restricting

or base layers without restricting arm movement

External zip pocket gives you quick access to your phone or keys without digging

Quick-dry construction sheds water fast so you're not waddling around in soaked shorts for the rest of the afternoon

the insulated liner alone

A lightweight build keeps fatigue in check on longer efforts

Nathan Pinnacle 4L Hydration Race Vest Size:XS or base layers without restrictingWhen race day demands every piece of gear earn its place, the Pinnacle 4L is our top pick for ultramarathon and long distance trail efforts. Body mapped construction keeps weight centered and movement minimal, so bounce and chafe don't become factors late in a run. Four liters of smart storage handles nutrition, layers, and mandatory gear without bulk. 4 liter total capacity carries nutrition, emergency layers, and mandatory race gear through the