Nathan Pinnacle Race Vest 4L Hydration Pack – with Two 20 oz Soft Flasks, Water-Resistant Pockets, Chafe-Free Fit

Used this for a 50K and it performed flawlessly. The two 20 oz flasks are easy to grab and replace on the move, and the no-chafe fit lived up to its name over five hours of running. Pockets are exactly where my hands want them. Lightest vest I've owned.

No bounce, no chafe, flasks included. Perfect race vest.

Bought this for anything up to marathon distance and it's been excellent. The water-resistant pocket kept my phone dry in a surprise downpour. I do wish it had slightly more storage for a big jacket, but for racing it's ideal.

The fit and comfort are top notch — I'll give it that. But both soft flasks dribble from the caps when they're half full, which got annoying on a 20-miler. Vest itself deserves 5 stars, flasks 2.

At 58 I've tried every hydration system out there. This vest beats them all. It rides high and tight on my chest, the flasks are easy to pull and re-stow without looking down, and I finished a hot summer 10-miler with no chafing whatsoever. The adjustable straps hold their position run after run.

It's listed as unisex and it truly is. I'm 5'4" and got the fit dialed in within minutes. Flasks don't jostle, pockets hold gels, phone, and keys with room to spare. Best running purchase of the year.

Took me a few runs to figure out the strap adjustments and where to stash everything. Once sorted, it's basically invisible on my back. Quality feels premium.

Loved this vest for its first race, but the main pocket zipper jammed and split on my second outing. Nathan support is sending a replacement, so hopefully just bad luck, but two runs shouldn't be enough to break a zipper.

My old vest weighed a ton and cost more than this one. The Pinnacle carries everything I need for 3-hour trail runs and I never notice it. The included flasks saved me another $30. Do yourself a favor and grab it while it's on sale.