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.

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.

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Boreal Saurus 2.0

The Boreal Saurus 2.0 is a robust and comfortable trail running shoe that's been designed to meet the requirements of the most demanding terrains, thanks to its Vibram Trail sole in MegaGrip. They also feature Boreal's patented Integrated Toe Rand (ITR) system that helps prevent the delamination of the toe-cap. The Saurus 2.0 is a great shoe and is perfectly suited for outdoor activities such as orienteering, trail running and approach walks.

From £107.63 inc. VAT

Salt Stick Electrolyte Caps 4 Capsule Trial Pack

The Salt Stick Electrolyte Caps 4 Capsule Trial Pack is a convenient and effective solution for replenishing essential electrolytes during physical activities, making it an ideal choice for athletes, outdoor enthusiasts, and anyone engaged in strenuous exercise. Designed to support hydration and maintain electrolyte balance, these capsules are a must-have for those who want to maximise their performance and stay energised.

£2.50 inc. VAT

Tailwind Endurance Fuel 30 Serving Pouch

Tailwind Endurance Fuel makes getting the right level of nutrition for long days training or racing simple. Tailwind offers complete energy, electrolyte and hydration in one simple drink, with a range of clean and light flavours to choose from. When mixed with water, Tailwind's glucose/sucrose fuel will take advantage of how your body absorbs fuel and maximise your intake of calories, all while being easy on the digestive system. Once in the bloodstream, Tailwind’s glucose fuel directly powers muscles, sparing precious glycogen stores and allowing you to go longer and at higher intensities without 'bonking'.

From £24.01 inc. VAT

OMM Ltd Ultra + Bottle 750ml Straw

The OMM Ltd Ultra + Bottle 750ml Straw has been built to keep you hydrated across long distances. Designed for performance, this bottle features a straw with OMM's large aperture bite valve for an excellent flow of water. This allows you to hydrate immediately without having to manually open or close any valves. The lid a bit valves are compatible across the OMM hydration range.

£10.00 inc. VAT

OMM Ltd Ultra Bottle 500ml with Bite Valve

The OMM Ltd Ultra Bottle 500ml Bite Valve is a water bottle that's been designed to perform. It features the OMM aperture bite valve which provides an excellent water flow rate, allowing you to immediately hydrate without having to manually open or close any valves. The bite valves can be interchanged with other bottles in the OMM hydration range.

£6.00 inc. VAT

OMM Ltd Leanweight Compressor Kit

The OMM Ltd Leanweight Compressor Kit is a mesh panel add-on for OMM running packs. The compressing mesh panel is suitable for stashing anything from helmets to your waterproofs or a drybag full of quick-access items. It fits to the outside of your OMM pack via multiple compression and attachment points on each side, ensuring even distribution. The stretch mesh allows the compressor to take shape over items for a secure carry.

£20.00 inc. VAT £17.82 inc. VAT

OMM Ltd Trio Map Pouch

The OMM Ltd Trio Map Pouch is versatile pouch with an integrated map-carry system, designed to fit OMM race packs via the front harness. It can be worn either across the chest, or alternatively can be mounted in a lower position across the waist if preferred by the user. The Trio Map Pouch provides you with quick-access to essential items and has a fold out map pocket on the front, so you can map read and navigate whilst on the move.

£30.00 inc. VAT £26.72 inc. VAT

OMM Ltd Ultra + Bottle 750ml with Bite Valve

The OMM Ltd Ultra + Bottle 750ml Bite Valve is drinks bottle for hydration across long distances. Designed for performance, the Ultra Bottle features a large bite valve for excellent water flow, allowing you to hydrate immediately without having to manually open or close any valves. The bite valve and lids are compatible across the OMM range.

£8.00 inc. VAT

OMM Ltd Go Pod

The OMM Ltd Go Pod is a handy pocket add-on that attaches to the shoulder strap of your OMM running pack. It will provide you with quick access to essential items that you may need whilst on the move and its compression cords allow you to cinch the top closed or compress the main body of the pouch, keeping the contents secure and stable. The multipurpose Go Pod is ideal for storing things like your water bottle, energy gels, snacks or a compass.

From £13.37 inc. VAT

OMM Ltd Compressor Pod

The OMM Ltd Compressor Pod will add an extra 5 litres of storage to your race pack. This versatile compression system is ideal for storing quick grab items such as waterproofs or extra layers and is a useful way to separate your clean and dirt kit. The compression cord will increase your load's stability and reduce pack movement.

From £26.72 inc. VAT

OMM Ltd Classic 25

The OMM Ltd Classic 25 is a durable, high-capacity running pack designed for long runs in tough terrain. Combining lightweight design with innovative features, it offers multiple pockets and attachment points for easy storage of race essentials like waterproofs, running poles and first aid kits. Ideal for mountain marathons and extended trail runs, this pack provides the perfect balance of comfort and functionality for outdoor athletes.

From £98.02 inc. VAT

OMM Ltd Classic 18

The OMM Ltd Classic 18 was originally designed in 1973 by Olympian and London Marathon founder Sir Chris Brasher, it was the first lightweight backpack that focused on weight as a key feature. Perfect for mountain marathons like the OMM, it’s also ideal for endurance challenges like the MDS, UTMB, Spine Race, Dragon’s Back, Grand2Grand, 4 Deserts, Fire Ice Ultra or even Everest expeditions.

From £89.10 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.

£170.00 inc. VAT £151.48 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
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