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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Altra
Men's Lone Peak 9+
The Altra Men's Lone Peak 9+ has been crafted for trail enthusiasts, equipped with a Vibram® Megagrip outsole that delivers outstanding traction on all terrains. Its enhanced midsole foam offers a responsive and comfortable ground feel, while durable no-sew overlays and a ripstop mesh upper withstand tough trails. Featuring Altra’s roomy toe box and Zero-to-Low Drop design, it encourages natural foot movement and long-lasting comfort. The Gaitertrap™ system prevents debris buildup, making this shoe perfect for high-mileage runs and challenging adventures.
Altra
Trail Gaiter
The Altra Trail Gaiters are your ultimate shield against debris, ensuring nothing sneaks into your footwear while you run. Whether you're navigating through sand, snow, rocks, or leaves, these gaiters allow you to tackle tough terrains with ease, keeping pesky sticks and rocks at bay. Crafted from abrasion-resistant and highly breathable materials, they’ll elevate your trail running experience. With a strapless design that will fit trail shoes, you can switch shoes and socks without removing the gaiters. While they’re optimised for Altra GaiterTrap-equipped shoes, they will also work with most other trail footwear.
Darn Tough
Women's Coolmax Run No Show Tab Ultra-Lightweight Running Sock
The Darn Tough Women's Coolmax? Run No Show Tab Ultra-Lightweight Running Socks are an ultra-lightweight sock that effectively wick moisture and keep the air flowing for vegan-friendly feet, keeping you cool and dry and your strides blister-free. They feature yarns made using Coolmax technology which works to wick sweat and regulate your temperature, keeping your feet in their comfort zone for miles.
SportTape
Kinesiology Tape (K Tape)
SportTape Kinesiology Tape (K Tape) combines superior stretch, secure adhesion and skin-friendly comfort, making it the go-to for athletes and active individuals who need flexible support. Trusted by Olympians and World Champions since 2012, this flagship tape has been designed to move with muscles and joints, enhancing performance and aiding recovery. While not a miracle cure, K Tape is a powerful addition to a full rehab program. When used correctly, it can help relieve muscle pain, reduce inflammation, support tendons, improve body awareness and assist with posture, all to keep you moving confidently.
Instinct
Endurance
The Instinct Endurance Cap delivers the ultimate blend of comfort and performance, making it your go-to for any adventure. Soft, ultra-light, and built for endurance, this cap features breathable micro-mesh fabric to keep you cool, plus a flexible, foldable design that’s easy to pack and take anywhere. With a stylish sublimated finish on both the top and underside and an adjustable elastic band with a secure clip clasp, it offers a premium look and fit that stays comfortable all day long.
Instinct
Race Number Belt
Th3 Instinct Race Number Belt is a race-day essential, the Race Number Belt keeps your race number secure and visible, so you can focus on performing your best. Equipped with three spring-loaded toggles, it firmly holds your race number in place, even during intense movement. With reflective logos for added visibility and an adjustable, one-size-fits-all design, this belt combines practicality with comfort. The sturdy nylon buckle clip ensures a quick and reliable fit every time.
Injinji
Halloween Crew
Get ready to add a dash of spooky fun to your run with the Injinji Halloween Crew Socks! Perfect for long-distance runs and tough hikes over rugged terrain, these themed toe socks not only look cool, but they’re also designed for peak performance. The individual toe design reduces friction, helping prevent blisters while allowing your toes to splay naturally, giving you better control on narrow, uneven trails. The crew length sits high to keep out debris, while an arch band provides extra support. Made with moisture-wicking COOLMAX® EcoMade fibres and breathable mesh, they keep your feet cool and dry, while durable nylon and mid-weight cushioning offer comfort and protection with every step.
Injinji
Spectrum Women's Run Lightweight No-Show
The Injinji Spectrum Women's Run Lightweight No-Show have been crafted with the female runner in mind! Perfect for every type of run, these ultra-lightweight socks feature a sleek, narrower design that hugs your feet for maximum comfort. With enhanced stretch and a thoughtfully redesigned toe area, you’ll experience unparalleled support and compression. Thanks to Injinji's innovative five-toe design, friction is a thing of the past, reducing the risk of blisters while allowing your toes to spread naturally for better balance on any terrain. Elevate your running experience with the ultimate in comfort and performance!
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!
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.
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 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.
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.
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.
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.