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.
Black Diamond UL Overmitts
The Black Diamond UL Overmitts are expertly crafted for fast and light expeditions in severe weather conditions. These ultra-lightweight mitts feature a 3-layer breathable recycled nylon shell that is both windproof and waterproof. Additionally, they are designed to pack down compactly, fitting easily into a small film case for convenient portability.
Darn Tough Men's Run Quarter No Cushion Ultra-Lightweight Running Sock
The Darn Tough Men's Run Quarter No Cushion Ultra-Lightweight Running Socks are an ultra-lightweight merino wool sock that have been designed with running in mind. They feature breathable flex zones in the forefoot, silky next-to-skin ribbing and fatigue-zapping arch support that work together to keep you fresh and comfortable on the trail. Their performance fit mean no slipping, no bunching and most importantly, no blisters! So you can focus on your run and not your feet.
Injinji Artist Designed Women's Crew
The Injinji Artist Designed Women’s Crew Socks perfectly blend trail performance and original artwork, so your socks can keep up with your adventures while showing off your style. Crafted with COOLMAX® EcoMade fibres, these socks wick away moisture to keep your feet cool and dry, while the blister-preventing toe sleeves give every toe its own space. Designed with a women’s-specific fit, they hug your feet for all-day comfort. And thanks to their crew-height coverage, you can say goodbye to pesky trail debris sneaking in.
Injinji Artist Designed Men's Mini-Crew
High-performance, eco-conscious, and artist-inspired. Elevate your run or hike with the Injinji Artist Designed Men's Mini-Crew Socks, blending athletic functionality with exclusive, limited-edition art. Featuring COOLMAX® EcoMade fibres made from 100% recycled materials, these socks keep your feet cool and dry while supporting the planet. Designed to prevent blisters with midweight cushioning, they deliver a custom fit that combines exceptional performance with unique style.
Injinji Artist Designed Women's Mini-Crew
Elevate your outdoor adventures with the Injinji Artist Designed Women’s Mini-Crew Socks, where vibrant design meets trail-ready performance. Created by talented artists within the outdoor community, each pair features exclusive, limited-edition prints to showcase your personal style. You can confidently tackle any terrain, knowing the blister-preventing toe sleeves and moisture-wicking COOLMAX® EcoMade fibres will keep your feet comfortable, dry, and protected. These socks are the perfect way to bring a touch of art to your next run, hike, or everyday journey.
Injinji Artist Designed Men's Crew
Experience the perfect blend of high-performance gear and artistic expression with the Injinji Artist Designed Men's Crew Socks. Made using premium COOLMAX® EcoMade fibres to keep your feet cool and dry, no matter how tough the trail gets, and designed with individual toe sleeves, they actively prevent blisters and allow for natural toe splay, while the taller crew cuff confidently blocks out debris. As a limited-edition piece, you can showcase your unique style while enjoying superior comfort and protection on every run or hike.
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 Women's
The INOV8 Trailtalon Women's are waterproof and versatile, ideal for wet and challenging conditions. Perfect for training, racing on soft or mixed terrain, these shoes excel on tough trails. Equipped with a GORE-TEX membrane, they keep your feet dry and warm, while the graphene-infused outsole provides exceptional grip on mud, woodland and rocky surfaces. The 6mm cleats, inspired by mountain goats, offer superior traction and quick release for smooth strides. A Powerflow Pro midsole and Boomerang Footbed ensure lightweight comfort, while the durable upper, breathable mesh and reinforced areas offer protection, with a secure heel cradle and toe bumper for added safety.
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 Core Zipped Vest
The OMM Ltd Core Zipped Vest is a lightweight, versatile mid-layer built with PrimaLoft® ACTIVE 125g/m² insulation for warmth without bulk. Offering the heat-trapping power of fleece at less than half the weight, it regulates temperature effectively whether worn alone or under a shell. Fast-drying, packable, and designed to insulate even when wet, this vest is a reliable companion for everything from valley approaches to summit pushes.
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 Aether Jacket - Dyneema
The OMM Aether Jacket - Dyneema 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.