Running Hydration

Ultimate Direction Ultra Vest 6.0 Review: A Lightweight Race Vest Done Right

Lightweight at 230 grams, packed with storage, and sold with two 500ml soft flasks. Our impressions after several weeks of short and fully loaded runs.

Black running race vest with blue accents and two soft flask bottles on concrete

Introduction

The Ultra Vest 6.0 from Ultimate Direction is the latest version of a vest that has been around long enough to earn real history. The original was many runners’ first step into the world of hydration vests, ours included, and it served through months of tough training and race miles with no problems at all. The brand has clearly kept developing the concept, and after three to four weeks of testing on both short minimal-kit efforts and longer runs carrying a full mandatory kit list, this new version makes a strong impression. It retails for $140 and weighs a light 230 grams without the bottles.

Who This Vest Is For

If you are buying your first race vest, or replacing an old hydration pack that is clinging on for dear life, this is a genuinely sensible place to spend your money. It is a thought-through design from a brand that has been making running products for a very long time, and it is light and breathable enough to disappear on your back even when fully loaded.

Trail runner climbing a dusty singletrack path in warm morning light

It also suits runners who want flexibility: bottles up front, a bladder on the back, poles on the front or the rear, and a size range from small to extra large. Running is personal, and this vest leans into that rather than forcing one setup on everyone.

Construction and Storage

The vest is made from a blend the brand lists as 82 silicon coated nylon and 12 spandex, which raises an eyebrow until you accept it and move on. It comes in four sizes and two colorways, including a black version with blue highlights.

Close-up of soft flask bungee cinched over a bottle pocket on a running vest

Storage is where this vest really earns its keep. The back holds a large main compartment with a zipped clamshell opening, plus a big stretchy stuff pocket on top for a waterproof jacket or trousers, cinched down with a bungee system. Two smaller zipped lap pockets sit lower on the back, one with a handy key loop.

Up front, you get a large pocket either side of the chest for the two included 500ml soft flasks, each held by a bungee that folds over the bottle top so it cannot slip down as you drink. Above the bottles sit small stash pockets perfect for electrolyte or salt tablets, plus a dedicated tiny pocket for an emergency whistle, which is a genuinely brilliant touch. The included whistle is also more substantial than the flimsy ones you typically get on competing vests. Under the left bottle there is a hidden zipped waterproof pocket for your phone, and beneath each bottle pocket a big stretchy stash pocket for gels and bars.

Hydration: Bottles First, Bladder Optional

The two included 500ml soft flasks are a highlight. They feature a lockable valve, so you can push it down to seal the bottle and avoid spraying water everywhere during transport. It is a smart feature that rival soft flask systems would do well to copy.

Upfront bottles remain our preferred system for racing: you can monitor your intake, mix water in one and electrolyte in the other, and top up easily at checkpoints. Still, if you prefer a bladder, the vest is compatible, with a separate compartment under the main pocket that carries up to a 2-liter bladder, complete with a clip to stop it sliding down. One gap worth noting: the bladder compartment has no insulation, so your drink will warm up quickly against your back.

Pole Carrying and Fit Adjustment

With running poles more popular than ever, a vest with a proper pole system matters, and the Ultra Vest 6.0 offers real personalization. Adjustable bungee cords can carry poles on the front, be moved to the lower back, or be removed entirely if you are not racing with poles.

Runner pausing at a mountain checkpoint to refill soft flasks

Fit adjustment is generous too. The front uses a double strap, double buckle closure with straps that can be repositioned up and down the pack through 13 placement options on a hook and loop system, so it should accommodate just about any body shape. Around the lower back, the updated Comfort cinch system adds a stronger cord and an internal air mesh panel aimed at breathability and preventing the chafing some runners reported on the previous version. You simply push down the locking mechanism, pull the cords, and cinch the vest snugly around your midriff.

How It Performed on the Trails

Fit, feel, and comfort are the headline. This is a very comfortable vest to run in, even fully loaded with a full kit list. The lightweight mesh construction feels breathable, and the adjustment means it genuinely fits your shape. There is no bounce and no movement. It just feels snug and secure.

The accessible storage worked well in practice. The front stash pockets are bigger than they first appear, swallowing plenty of gels and bars, and the phone pocket under the bottle, which has been uncomfortable on other vests we have used, actually worked well here. The rear lap pockets take some practice to locate while moving and are not the biggest, but they become usable with familiarity.

A few caveats are worth knowing before you buy. Despite the brand describing the main compartment as waterproof, we would still pack your kit in a dry bag: the zip does not appear waterproof and the internal seams are not taped. And the strap and buckle closure leaves quite a lot of spare strap flapping around once cinched down, which you have to tuck or tie off. A more minimal single-pull closure would be welcome here.

Buying Advice

At $140, the Ultra Vest 6.0 undercuts nothing by being cheap, but it delivers a lot: light weight, excellent storage, included soft flasks with lockable valves, bladder compatibility, and a pole system with real flexibility. Sizing by the four available options is the right call over one-size-fits-all designs. If the flap-prone strap system does not put you off, this is an easy recommendation.

Conclusion

Ultimate Direction has clearly moved on and improved a lot over the years. The Ultra Vest 6.0 looks and feels well put together, runs lightweight and breathable, holds a secure bounce-free fit, swallows most mandatory kit lists, and comes with genuinely well-thought-through soft flasks. For a first race vest or an overdue upgrade, it deserves a spot on your shortlist.

Product link

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View more details for Ultimate Direction Ultra Vest 6.0

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