£
£

OMM

Ready for mountain adventures or local trail runs? Meet OMM—Original Mountain Marathon—trusted by runners and outdoor explorers across the UK. Known for ultra-light, comfy running vests and daypacks, OMM gear is built for those who want great fit, clever storage, and no-nonsense durability, whatever the weather throws at you.

With clever designs, you’ll find loads of easy-access pockets, breathable mesh, and super-stable fits that move with you, not against you. Whether it’s a quick morning 5K or an all-day mountain mission, OMM vests and packs keep your kit close and your hands free. Most are hydration compatible, adjustable for all shapes, and expandable if you need extra space for gear mid-adventure.

Tough, weather-resistant fabric means you don’t have to worry about sudden rain, and their classic harnesses help spread the weight so you can focus on the run. From first-timers to seasoned mountain marathoners, OMM’s got your back every step, hike, or scramble. Give one a go—you might never look back.

Sort By:

OMM stands for Original Mountain Marathon, a brand renowned for ultra-lightweight, technical kit designed for mountain marathon events and endurance running in the toughest conditions.

OMM vests are engineered for stability, minimal bounce, and ease of access, with features such as ergonomic fits, multiple stretch mesh pockets, and hydration compatibility, all tailored for high-performance mountain running.

Yes, OMM running vests feature unisex designs and adjustable sizing, ensuring a comfortable and secure fit for all body shapes.

OMM offers various sizes, including minimalist 3L vests for essentials (e.g., TrailFire Vest) up to 5L and more (e.g., UltraFire 5), with expandable options using accessories for longer distances.

Most OMM vests are hydration-compatible, designed to carry up to 2 x 500ml soft flasks in the front and a 2-litre bladder in the rear compartment.

Models like the TrailFire Vest provide seven easy-access pockets for on-the-go essentials, alongside a larger rear mesh compartment for extra kit or hydration bladders.

Yes, vests like the UltraFire are designed for stability, comfort, and breathability on ultra-distance runs, featuring ergonomic harnesses that don’t restrict breathing.

Yes, many vests are compressor pod compatible and accept add-ons for increased capacity, making them adaptable to different race demands.

OMM daypacks, such as the Classic 25 and Ultra 8, are noted for their lightweight, robust construction, wraparound mesh side pockets, removable waist belts, and multipurpose back padding that doubles as a sleeping mat.

The OMM Classic 25 is a staple for mountain marathons and distance running, balancing comfort, storage, and stability over rugged terrain.

Yes, OMM daypacks are versatile and can be used for running, hiking, fastpacking, and even commuting, thanks to their adaptable storage and adjustable fit.

OMM uses water-resistant fabrics in key areas, with secure, weatherproof roll-top compartments for storing dry kit during wet runs.


Let us know you agree to cookies

We use marketing, analytical and functional cookies as well as similar technologies to give you the best experience. Third parties, including social media platforms, often place tracking cookies on our site to show you personalised adverts outside of our website. We store your cookie preferences for two years and you can edit your preferences via ‘manage cookies’ or through the cookie policy at the bottom of every page. For more information, please see our cookie policy.