Up and Under Trail Running

Welcome to the Trail and Ultra Running section of our website. Up and Under in Cardiff has been supplying fell running specific footwear for years, but has expanded into the wide ranging and glorious world of trail running in the past 10 years. We have a close working relationship with a number of trail and ultra race organizers in the area, most notably Run Walk Crawl, Ridge Runners and Up Hill Down Dale and have therefore expanded our range to cover Ultra Running products that can help you race on all terrains, through day and night, for 4 seasons of the year.

A lot of our core clothing ranges and equipment such as headtorches, first aid kits, whistles, etc. are equally appropriate for trail-running so don't forget to take a look around those sections or use our search if what you need isn't immediately obvious within this part of our catalogue.

Trail running sale

We select the best trailshoes, packs, poles, vests, torches and clothing from baselayer through socks, shorts, tights and insulation to windproof and waterproof shell, hats and gloves and we have what you need for all your fell and trail-running needs, all carefully selected by our staff with insights from Run, Walk Crawl to suit you. It's all from the best brands, but see the quick links below to rapidly access some of our most popular. It's also worth having a browse outside of running through our Odlo range for extra warm quick drying, high wicking, lightweight base and midlayer clothing and everything beyond.

Inov8InjinjiLa SportivaMontaneOriginal Mountain MarathonUltimate DirectionVJ-Sport
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OMM Ltd

MountainFire 15 Vest 2 x 350ml Flexi Flask

The OMM Ltd MountainFire 15 Vest (with 2x 350ml Flexi Flasks) is a running hydration vest with a roll-top closure, that has extra capacity suited for longer runs and adventures. It comes complete with two 350ml OMM Flexi Flasks to keep you hydrated on the move and has an additional sleeve to add a bladder if needed. The MountainFire 15 is perfect for events such like a 2-day mountain marathon, as it offers space to pack additional emergency kit such as extra layers, dry food and first aid.

Up to 28%
off RRP
From £89.99 inc. VAT

OMM Ltd

WaistBelt 6

The OMM Ltd WaistBelt 6 is the perfect companion for ultra-distance running challenges and mountain adventures. Designed with long runs in mind, this versatile waist pack offers ample storage for spare layers, food and drinks so you can cover more ground with fewer stops. Included with the WaistBelt 6 is a 500ml Ultra Bottle, conveniently placed in an easy-access pocket to keep you hydrated on the go. Whether you're tackling rugged trails or taking on endurance challenges, this running belt is built to help you perform at your best.

From £40.09 inc. VAT

OMM Ltd

Phantom 25

The OMM Phantom 25 is a high-capacity, lightweight vest pack that's been made with durable Cordura fabric, ensuring it stands up to tough conditions. Designed with stability and comfort in mind, its innovative 7-point harness system connects directly to your spine with a top yoke-style harness, offering unmatched balance and reducing movement. Combining the storage of a backpack with the easy access of a vest, the Phantom 25 is perfect for multi-day races and ultra challenges where stopping frequently to grab gear isn’t an option. Stay efficient and keep moving with this reliable adventure racing pack.

£200.00 inc. VAT £178.20 inc. VAT

OMM Ltd

Phantom 18

The OMM Ltd Phantom 18 is a lightweight and durable Cordura vest pack designed for adventure racing. Its compact 18L size features a unique 7-point harness and yoke-style design for ultimate stability and energy-efficient movement. With dual V-shaped anchors for a secure fit, it minimises bounce and swing on uneven terrain, making it perfect for runners seeking comfort and performance.

£160.00 inc. VAT £142.56 inc. VAT

OMM Ltd

Kamleika Overmitt

The OMM Ltd Kamleika Overmitts are waterproof running mitts designed to provide superior protection from the elements when the weather turns harsh. These versatile mitts can be worn directly on the skin or over another glove for added warmth and insulation. Crafted from the same stretchy, breathable, and waterproof fabric as the rest of the Kamleika range, they deliver unmatched protection in the most demanding weather conditions.

From £35.64 inc. VAT

OMM Ltd

Fusion Glove

The OMM Ltd Fusion Gloves are mid-weight running gloves designed for versatility and performance. Featuring a windproof back, silicone grips on the fingers for easy map handling and E-tips on the index fingers for smartphone compatibility, they offer a perfect balance of dexterity and warmth. The light fleece lining in the palms provides added warmth, while the windproof design protects you from the elements, making these gloves ideal for outdoor adventures and active use.

From £22.27 inc. VAT

OMM Ltd

Kamleika Cap

The OMM Ltd Kamleika Cap is a lightweight waterproof running hat designed for maximum performance. Crafted from a knitted stretch fabric with a breathable PU membrane, this cap provides superior temperature regulation and moisture management. Featuring 37.5 technology, the Kamleika Cap actively manages sweat and temperature, ensuring comfort in even the most challenging weather conditions. Tested by OMM competitors, this running hat is built to endure the toughest outdoor environments, making it the ideal choice for trail running, ultra-races and extreme endurance events.

From £26.72 inc. VAT

OMM Ltd

Breeze Cap

The OMM Ltd Breeze Cap is a lightweight and packable running cap that's been designed for outdoor activities like trail running and hiking. It offers UPF 30+ sun protection, as well as wind and water resistance for enhanced comfort on long hikes or runs. Weighing in at just 20g and packing down small, it’s easy to stash in your bag or pocket on exposed days in the mountains. Made with FLEXILE fabric, it provides a stretchy, pressure-free fit and remains comfortable under a helmet. Ideal for any outdoor adventure, the Breeze Cap delivers reliable sun protection and comfort in all weather.

Up to 30%
off RRP
From £17.50 inc. VAT

OMM Ltd

Halo Pant Women's

The OMM Ltd Women's Halo Pants are crafted to be lightweight for convenient storage in your pack, yet they deliver high performance when weather conditions change. These ultra-lightweight, breathable waterproof trousers can be packed down to the size of a tennis ball.

From £75.73 inc. VAT

OMM Ltd

Halo Pant

The OMM Ltd Halo Pants are ultra-lightweight, breathable waterproof trousers designed for athletes who need high performance in unpredictable weather. These packable overtrousers fold down to the size of a tennis ball, making them easy to carry without adding weight to your pack. Constructed with a 2-layer waterproof fabric and fully taped seams, the Halo Pants offer outstanding protection with a hydrostatic head of 10,000mm. Weighing just 80g and fully race compliant, they combine with the Halo Smock to create a full suit weighing only 175g, providing reliable performance when you need it most.

From £75.73 inc. VAT

OMM Ltd

Bearing Tee S/S Women's

The OMM Ltd Bearing Women's Short Sleeved Tee is a technical running top that's designed to keep you comfortable, even during high intensity activities and multi-day races. It uses four-way stretch Coolplus technology which offers maximum freedom of movement and effectively wicks sweat. It's also treated with Polygiene antibacterial and odour technology to keep you fresh and dry.

From £26.72 inc. VAT

OMM Ltd

OMM Ltd Bearing Tee S/S

The OMM Ltd Bearing Short-Sleeved Tee is a premium technical running top designed for ultimate comfort during high-intensity workouts and multi-day races. Featuring advanced four-way stretch Coolplus technology, it ensures maximum freedom of movement while effectively wicking sweat to keep you dry. Treated with Polygiene antibacterial and odour-control technology, this tee helps you stay fresh and comfortable, no matter how demanding your run. Perfect for athletes seeking performance-driven gear that delivers on every level.

From £26.72 inc. VAT

OMM Ltd

Pace Short Women's

The OMM Ltd Women's Pace Shorts are a double layer running short that have been built for long and demanding mountain runs. These soft and stretchy shorts come equipped with two handy mesh pockets, so you can store your essentials such as gels, compass or a wind-shirt. They have a wide, elasticated waistband with drawstring adjustment which ensures a great fit.

Up to 30%
off RRP
From £42.00 inc. VAT

OMM Ltd

Pace Shorts

The OMM Ltd Pace Shorts have been designed to keep you comfortable, supported and prepared for every challenge. Featuring a double-layer construction, these running shorts combine a soft, stretchy liner for added support with a lightweight outer layer that moves effortlessly with your stride. Stay trail-ready with two convenient mesh pockets, perfect for carrying essentials like energy gels, a compass or a compact wind-shirt. The wide, elasticated waistband with an adjustable drawstring ensures a secure and customised fit for all-day comfort, even on the most rugged terrain. Built for mountain runners who demand performance and reliability, the OMM Ltd Pace Shorts are your go-to gear for high-energy adventures.

Up to 30%
off RRP
From £42.00 inc. VAT

Chia Charge

Chia Charge Flapjack

The Chia Charge Flapjacks have expertly crafted to combine great taste with high-performance nutrition. Packed with energy-boosting chia seeds, these bars deliver a natural source of protein and carbs, making them ideal for regular exercise, training sessions, and long-distance activities. Unlike many sports snacks, Chia Charge embraces the use of brown sugar and golden syrup, providing the essential carbohydrates needed for sustained energy during endurance efforts. Made from simple, kitchen-cupboard ingredients, these flapjacks offer a wholesome and flavourful way to keep you energised and performing at your best.

From £2.20 inc. VAT

High 5

Aqua Gel 66g

High 5 Aqua Gel comes in 66g sachets and is a carbohydrate energy gel suitable for use before and during exercise. Each sachet contains 23g of carbohydrate energy and has been made with refreshing natural juices, giving them an extremely light consistency unlike many other gels on the market. Great for beginners trying gels for the first time, plus it's suitable for vegetarians and vegans.

From £1.42 inc. VAT
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