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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Injinji

Halloween No-Show

The Injinji Halloween No-Show socks are a spooky twist on Injinji's lightest and most versatile running socks, perfect for all terrains and conditions. These socks feature Injinji's signature five-toe design, which helps prevent blisters by reducing friction and allows your toes to move naturally for a more responsive feel on uneven ground. Crafted with a soft and durable, seamless design, they offer a snug and secure fit. The breathable mesh top and COOLMAX® EcoMade fibres work together to keep your feet cool and dry, while an arch band provides extra support. With a no-show cut that sits below the ankle and a heel tab to prevent chafing and slipping, these socks are both functional and fun for your Halloween runs!

From £16.03 inc. VAT

Black Diamond

Gridtech Storm Hood Gloves

The Black Diamond Gridtech Storm Hood Gloves are designed with a thermal insulating sleeve and include a stowable, waterproof hood for enhanced cold weather protection. Engineered for extended runs in harsh conditions, these gloves offer robust defence against the elements. The grid fleece construction ensures exceptional warmth while maintaining breathability, and the moisture-wicking properties keep your hands dry. For unexpected downpours or cold snaps, the gloves feature a stowable 3-layer waterproof hood made from 100% recycled nylon ripstop, providing an extra layer of protection when needed.

From £53.05 inc. VAT

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.

From £44.22 inc. VAT

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.

From £19.60 inc. VAT

Injinji

Artist Designed Women's Crew

The Injinji Artist Designed Women's Crew showcase unique designs from talented artists within the outdoor community, these designs are exclusive and each collection has been created by a new artist. Build on a women's crew silhouette, these cushioned toe socks help to prevent blisters and utilise Coolmax EcoMade fibres to wick away sweat and moisture. The height of the sock seals out any debris from the trail, whilst a narrower fit distinguishes the fit from that of the men's version.

From £16.93 inc. VAT

Injinji

Artist Designed Men's Mini-Crew

The Injinji Artist Designed Men's Mini-Crew, based on the Trail Mid-weight Mini-Crew, offers cushioned comfort, blister prevention and moisture-wicking with COOLMAX® EcoMade fibres. The double cuff blocks trail debris, and the narrower fit is tailored for women. Part of the exclusive Artist Designed series, the Alaska collection by Claire Van Winkle features vibrant colourways inspired by the beauty of Southeast Alaska.

From £16.03 inc. VAT

Injinji

Artist Designed Men's Crew

The Injinji Artist Designed Men's Crew socks combine the classic crew silhouette with enhanced cushioning to prevent blisters and COOLMAX EcoMade fibre technology to wick away sweat and moisture. The crew height helps keep out debris, making them perfect for the trail. Part of the exclusive Artist Designed series, these socks feature unique designs from talented artists within the outdoor community. This collection showcases the work of Claire Van Winkle, inspired by the stunning macro and micro beauty she encountered while guiding in Southeast Alaska.

From £16.93 inc. VAT

PhD

Smart Bar Plant

The PhD Smart Plant Bar is a delicious, high-protein, low-sugar snack that's been specifically crafted for vegans and vegetarians. Featuring a super-soft protein centre, gooey caramel and a crunchy coating of protein crispies, each bar delivers an indulgent taste while keeping your macros in check. With 20g of protein and under 1g of sugar per bar, it’s the ideal treat for a flavourful and guilt-free snack on the go.

£2.99 inc. VAT £2.72 inc. VAT

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.

From £2.72 inc. VAT

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.

From £116.44 inc. VAT

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.

From £132.76 inc. VAT

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.

From £132.76 inc. VAT

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.

£8.00 inc. VAT £7.13 inc. VAT

OMM Ltd

Classic 32

The OMM Ltd Classic 32 is a spacious running pack crafted for long-distance training, races, and tough terrains. Its lightweight yet durable design, paired with innovative features, makes it versatile enough for short-haul flights or climbing a Munro. However, its true element is the Mountain Marathon start line. Suitable for both 450-mile solo expeditions and daily training, the Classic pack offers multiple attachment points for your gear. For multi-day ultra racing, add the Chest Pod and front bottle holders.

£120.00 inc. VAT £106.92 inc. VAT

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.

From £338.58 inc. VAT

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.

From £26.72 inc. VAT
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