Inov-8 Race Ultra Pro 5 Running Vest: First Impressions From the Trail

Introduction

Trail running vests have become an essential piece of kit for anyone racing long distances over technical terrain, and the mandatory kit list is only growing. Inov-8’s Race Ultra Pro 5 enters that space promising a lightweight, adaptable 5-litre package, and this first outing aimed to answer a simple question: can it carry a full race load comfortably over real trails? To find out, it was loaded with the usual race-day essentials, including a waterproof jacket, waterproof trousers, a first aid kit, a survival bag, a buff, a warm hat, nutrition, and other small items, then taken out on a 10K trail run in Cornwall.

First Impressions of the Inov-8 Race Ultra Pro 5

The Race Ultra Pro 5 retails in the UK for 130 pounds and weighs 274 g without bottles, or 370 g with the two included 500 ml soft flasks. It comes in two sizes: small/medium and large/extra large. One of the most interesting design choices is the dual bottle setup. You can run the soft flasks in the side pockets with long straws routed to the front, or remove the straws, fit the bite valves directly on the bottles, and stow them in the two chest pockets in a more traditional style. That flexibility is a genuine strength, because runners come in all shapes and preferences.

Out on the trail, the side-pocket setup with long straws proved surprisingly effective. The bottles sat close to the body without interfering with arm swing, and having easy access to water while moving made a real difference. Even fully loaded with kit, the vest stayed comfortable and secure with no bouncing or movement of any description.

The vest also includes a matching collapsible soft cup, but it does not support a bladder hydration system, so this is a flask-first design through and through. There is an emergency whistle on board too, and it is a genuinely good one, noticeably better than the whistles fitted to many comparable packs.

Fit, Comfort and Adjustability

In a small/medium, the vest offers a snug and secure fit that compares very well with the Salomon Advanced Skin 12, which is high praise for a first run. The front closure is refreshingly simple: two fully adjustable straps with small plastic clips that slide along a hook-and-loop system, letting you position them up or down to tailor the fit to your body shape.

There is extra adjustment in the side pockets as well, plus another adjustment strap for further personalisation. Past Inov-8 vests have sometimes felt a step behind the competition in this area, but this one feels genuinely well thought through. The adaptability on offer means the vest can be tuned to individual needs rather than forcing the runner to adapt to the pack.

Storage and Packing for Race Day

The main compartment holds 5 L and opens at the top with a Velcro fastener. The fabric is very stretchy, so despite the modest stated volume, it swallows a lot of kit. On top of the main pocket sit two clever secondary storage options: a Velcro-fastened small pocket on the right-hand side, and a zip pocket on the left.

The front of the vest is just as generous. With the bottles set up in the side pockets, each chest area gets a double pocket for race-day essentials you need on the move, plus a couple of smaller pockets higher up for items like electrolyte salt tablets. For a 5-litre vest, the amount of usable storage is genuinely impressive, and the pockets are big, easy to access, and simple to pack.

Running with bottles in the side pockets also frees up those large chest stash pockets and makes the zip pockets underneath easier to reach. Many runners may still prefer chest-mounted bottles out of habit, but both configurations work, and that is the point.

Pole Carry, Visibility and Practical Details

For runners who race with poles, the vest offers bungee loops on the front for a front-mounted system, plus additional attachment points on the lower back and the sides. A thoughtful touch: each bungee comes with a little clip so you can stow the loops away when not in use, keeping them from bouncing around while you run. Inov-8 also includes spare bungee cord that attaches to loops on the back of the vest for extra carrying options.

Visibility is another strong point. There is plenty of high-vis detailing on both the front and back, which matters for winter marathon training or ultra races that cross road sections at night.

Things to Consider Before Buying

The Race Ultra Pro 5 does not carry a hydration bladder, so runners committed to a reservoir-based system will need to look elsewhere. The two-size range also means fit is less granular than some competitors offer, though the extensive strap adjustment compensates considerably. Finally, at 130 pounds in the UK, it sits at a serious price point, though the build quality and adaptability support it.

Buying Advice

If you want a lightweight 5-litre vest that adapts to your body and your race kit rather than the other way around, the Race Ultra Pro 5 deserves a close look. Choose it for flexible bottle placement, generous storage for its size, and thoughtful details like the stowable pole bungies. If you prefer a chest-mounted bottle setup, try removing the long straws and fitting the bite valves directly, then decide which configuration suits your running style over a few longer outings.

Conclusion

The Inov-8 Race Ultra Pro 5 made a very positive first impression. It is comfortable, secure, adaptable, and packed with clever storage for a 5-litre pack, and it ran just as well with bottles in the side pockets as it promises to with a chest-mounted setup. Longer testing over bigger distances is still to come, but on this evidence, Inov-8 has a genuinely competitive trail vest on its hands.