Running
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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PhD
Smart Bar
The PhD Smart Bar is your ideal high-protein snack, combining 21g of protein with less than 2g of sugar per bar. Available in various delicious flavours, each bar features a soft protein centre, gooey caramel, and crispy protein pieces, all coated in smooth chocolate for a true confectionery taste. Perfect for those maintaining a lean lifestyle without sacrificing flavour, it's also palm oil-free for a more sustainable choice.
INOV8
Trailtalon Men's
The INOV8 Trailtalon Men's have been built for running on tough and mixed terrains that may be wet or muddy. These waterproof trail shoes are an evolution of Inov8's popular Roclite range and will excel across all surfaces whilst keeping your feet warm and dry thanks to their Gore-Tex membrane. A graphene-infused rubber outsole provides uncompromising grip of soft surfaces such as mud or slippery woodland trail with hard, rocky ground. There are breathable mesh zones for added ventilation and reinforced areas in places the shoe is likely to see wear. A strong heel cradle delivers a secure, locked-in fit, whilst a toe bumper protects against any unseen obstacles on the trail.
VJ-Sport
IRock+
The VJ-Sport IRock+ trail shoes feature a noticeably wider last for more space in the toebox and forefoot, while still maintaining a precise fit in the heel and midfoot. Known for its aggressive performance in softer conditions, the IRock+ offers optimal grip with its larger lugs and VJ’s signature Butyl rubber outsole. The LightEVA midsole ensures a light, responsive run, and the durable armoured nylon upper protects your foot on rugged terrains, with a soft heel counter for added comfort.
VJ-Sport
MAXx 2
The VJ MAXx2 is a versatile, well-cushioned, and fast trail running shoe for various terrains. It features the innovative SuperFOAMance midsole, made from ultralight, nitrogen-infused material for exceptional cushioning and energy return. This advanced foam is lighter, more responsive, more comfortable, and more durable than traditional EVA foam. A full-length rock plate in the midsole provides added protection against sharp edges and branches, enhancing torsional rigidity and energy efficiency.
OMM Ltd
Ultra Flexi Cup
The OMM Ltd Ultra Flexi Cup is a flexible folding cup that's been designed for drinking on-the-go and at camp. Made with durable thermoplastic which allows for easy storage and compression, whilst its shaped lip allows for easy filling and drinking.
OMM Ltd
Classic 32
The OMM Classic 32 is your ultimate partner for long-distance races, fastpacking adventures, and epic mountain days. Designed with a longer back length and ample capacity, it combines lightweight durability, smart pocket layouts, and a rich heritage dating back to 1973. Whether you’re lining up for a Mountain Marathon or just chasing the horizon, this pack delivers unmatched comfort, stability, and adaptable storage, no matter where your feet take you.
OMM Ltd
Aether Jacket - Dyneema
The OMM Aether Jacket is the ultimate in lightweight durability, designed to tackle the toughest conditions, from October’s OMM race to alpine peak enchainments. Crafted with industry-leading Dyneema technology, it combines mountaineering-grade strength with exceptional breathability and waterproofing, all in a package weighing under 230g. Built for runners who demand protection without compromise, it surpasses even the acclaimed Kamleika in innovation and performance.
OMM Ltd
Poles Pod
The OMM Ltd Poles Pod is a pack add-on that allows for quick and easy access to your running poles on-the-go. Designed to attach to the shoulder straps of your running vest or backpack, the Poles Pod gives you the freedom to personalise your kit to fir your adventure. It features a bungee draw-cord closure with easy-access compression, allowing your poles to stay securely in place. The pod is compatible with any pack from OMM's range, as well as most other brands, making it a versatile addition to your trail running gear.
OMM Ltd
Core Zipped Vest
The OMM Ltd Core Zipped Vest is an ultra-light, breathable running layer designed with innovative PrimaLoft Insulation. This unique active insulation layer combines the warmth of a fleece with less than half the weight, maintaining insulation even when wet. When paired with a shell jacket, it provides remarkable warmth, but its high air permeability lets a breeze easily cool you down, making it ideal for maintaining comfort as you warm up. Keep your Core layer on for effortless thermoregulation - just adjust your outer shell, for example the 49g Sonic windproof, to stay in control of your temperature.
OMM Ltd
Core Beanie
The OMM Ltd Core Beanie is a close-fitting beanie, made with innovative PrimaLoft® ACTIVE insulation, offers exceptional warmth in a lightweight, packable design. This cutting-edge material weaves industry-leading insulating fibres through a fine mesh, delivering down-like performance that stays warm even when wet. Perfect as a standalone piece or paired with a windproof layer to trap heat effectively, it’s an essential for staying warm on the go.
OMM Ltd
Flash Winter Tight Women's
The OMM Ltd Flash Winter Tight Women's are expertly designed with a blend of fabrics to deliver targeted insulation and ventilation for optimal performance in cold conditions. Lightweight polyester stretch fleece is strategically placed on the front of the thighs and lower legs to shield areas most exposed to the elements. Meanwhile, lighter Flash fabric panels enhance ventilation and provide unrestricted movement. Weighing just 220g, these full-length tights are the ideal choice for winter ascents and extended days in the hills.
OMM Ltd
Core+ Hoodie Women
The OMM Ltd Core+ Women's Hoodie is an ultralight, versatile hoodie designed to keep you warm from valley to summit. Using innovative Primaloft® Active insulation, this hoodie is perfect for long winter runs, camping, or tackling freezing days in the mountains. The entire OMM Core Range is made from Primaloft® Active fabric, which combines synthetic insulation woven through a breathable mesh. This gives you the warmth of a fleece at less than half the weight. When paired with a shell, the Core+ becomes an incredibly efficient insulator, allowing excess heat to escape with ease. It’s the ideal layer for active, cold-weather adventures.
OMM Ltd
Flash Tights 1.0
The OMM Ltd Flash Tights 1.0 are the ultimate choice for runners tackling tough conditions. Built with durability and flexibility in mind, these tights feature OMM's innovative patterning that hugs the body without holding you back. Instead of a single fabric cut, strategically placed body-mapped panels allow for a closer fit with less Lycra, enhancing breathability and temperature control. The Flash series keeps you comfortable with superb moisture-wicking and quick-drying capabilities, plus 4-way stretch for optimal freedom. Slimline thigh pockets provide convenient storage for essentials like gels, a compass or a map, making these tights a versatile choice for any run.
Darn Tough
Men's Run No Show Tab Ultra-Lightweight Running Sock
The Darn Tough Men's Run No Show Tab Ultra-Lightweight Running Socks have been expertly designed to elevate your running performance. Featuring a silky, chafe-free cuff, high-performance flex zones and a supportive fit, these premium running socks ensure maximum comfort for marathon distances and all-day wear. Made with ultra-lightweight, moisture-wicking Merino wool, they keep your feet dry, cool and blister-free mile after mile. Perfect for serious runners seeking durability and performance in every stride.
Darn Tough
Men's Run No Show Tab No Cushion Ultra-Lightweight Running Sock
The Darn Tough Men's Run No Show Tab No Cushion Ultra-Lightweight Running Socks are engineered for runners who demand performance and comfort. With a sleek, streamlined design and silky, chafe-free cuffs, these socks deliver irritation-free wear. Crafted from ultra-lightweight, moisture-wicking Merino wool, they ensure your feet stay dry and comfortable, while high-performance flex zones provide a secure, supportive fit. Designed for all-day comfort, these running socks help you push your limits and go the extra mile.
INOV8
Thermal Mitts
The Inov8 Thermal Mitts are the ultimate waterproof and insulated running mittens for long runs in cold and wet winter conditions. Primaloft Gold insulation Active+ works to keep your hands warm in the coolest of conditions, while also working to transfer moisture and sweat away from your skin. They feature both a waterproof inner and a durable Water Repellent PFC-free coating, so you're sure to stay dry in even the heaviest of downpours. Silicone grip on the palms make handling poles and other accessories more secure, plus they're phone and touch-screen compatible! The Inov8 Thermal Mitts will keep you dry, warm and comfortable, allowing you to run further.