Nathan Pinnacle Pro 12L

The Nathan Pinnacle Pro 12L is the vest pros have been testing (and loving) quietly—the one with on-the-run adjustment you can dial in without breaking stride.

The Pinnacle Pro 12L is Nathan's lightest race-ready vest with true micro-fit customization—built for ultrarunners who need 12 liters of smart storage without the bulk.

Pinnacle Pro 12L

Second-Skin Compression, Real-Time Adjustability – The Pinnacle Quick Fit™ system lets you make micro size adjustments mid-run using side pull cords. Your body changes over 50 miles. Your vest should adapt with it. Combined with slider sternum cords that move up and down your torso, you get a compression fit that feels custom-built.

Storage Thats Functional – Eight front mesh pockets organize nutrition by the hour. Two side pass-through pockets let you stuff trash without slowing down. The oversized back pocket opening means you can grab your rain shell while moving—not an easy feat when you're exhausted at mile 40. Inside, a separate bladder compartment keeps your 1.6L insulated HydraPak hourglass away from gear, so nothing gets wet when you refill.

The Breathability You've Needed – Interior air mesh panels create airflow channels against your skin. The quick-dry fabric pulls sweat away before it pools. During testing, runners reported staying notably cooler on exposed ridgeline climbs where heat management makes or breaks your day.

What Makes this the Pro

Nathan upgraded everything about the original Pinnacle 12. The Pro version includes elastic slider cords instead of rigid straps, four pole keepers instead of two (mount horizontal or diagonal), and that Quick Fit adjustment system the standard model doesn't have. You also get the insulated bladder included—the kind that keeps water cold for hours and minimizes sloshing with its hourglass shape.

Using the Nathan Pinnacle Pro 12L

Use the interior zippered pocket with pill compartment for S-Caps and the key fob for your drop bag keys. The front flask pockets fit 20oz soft flasks with elastic retention cords—when they're empty at mile 30, they compress flat instead of bouncing.

Ultrarunners tackling 50Ks to 100-milers where every ounce and every adjustment matters. The 12-liter capacity handles self-supported training runs and races where you're carrying layers, nutrition for hours, and emergency gear through variable terrain.