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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OMM Ltd
Ultra Flexi Flask 250ml with Bite Valve
The OMM Ltd Ultra Flexi Flask 250ml with Bite Valve is a lightweight, compact, and flexible hydration solution designed for runners and fast-moving adventurers. Made from durable thermoplastic polyurethane (TPU), it compresses as you drink, eliminating sloshing and reducing effort. The wide opening ensures easy filling and cleaning, while the secure bite valve prevents leaks. Slim, squeezable, and BPA, PVC, and phthalate-free, it’s perfect for hydrating on the go with both water and gels.
OMM Ltd
Z-Lite Poles - Alloy
The OMM Ltd Z-Lite Poles (alloy) are lightweight, compact, and built for ultra-distance racing, mountain marathons, and fastpacking adventures. Made from aircraft-grade aluminum for the best strength-to-weight ratio, they feature an ergonomic EVA foam grip, shaped webbing wrist strap, and a low-profile basket for stability on technical terrain. The 4-section fixed-length design folds down for easy packing, while colour-coded straps help identify the right size. Whether tackling multi-day races, long-distance trails, or setting up a bivvy, these poles provide reliable support, energy return, and ultimate durability, making them an essential adventure companion.
Fenix
HL18R-T V2.0
The Fenix HL18R-T V2.0 is a lightweight, rechargeable trail running headlamp designed for runners, hikers, and outdoor adventurers looking for versatile lighting and long-lasting performance. Featuring dual primary beams, it offers a white beam for clear visibility and a warm-white beam to cut through mist and fog, plus two red LEDs to preserve night vision. The SPORT bi-directional rotary headband system allows quick tension adjustments, and a built-in safety whistle adds extra security. Powered by a 1900mAh Li-poly battery with USB-C charging, it delivers up to 500 lumens and can also run on AAA batteries. A sliding lock switch prevents accidental activation, and the breathable, reflective headband ensures comfort and visibility. Compact, durable, and weather-resistant, the HL18R-T V2.0 is built to perform on the toughest trails.
Altra
Women's Timp 5 Boa
The Altra Women's Timp 5 BOA® is a high-performance trail running shoe designed for precision fit, superior grip, and plush cushioning. Featuring the BOA® PerformFit™ Wrap System, it allows for on-the-go micro-adjustments, ensuring a secure, customized fit throughout your run. The Vibram® Megagrip outsole provides exceptional traction on wet and dry terrain, while the Altra EGO™ MAX midsole offers a responsive, cushioned ride with extra bounce. Designed with zero drop and a roomy FootShape™ toe box, it promotes natural movement and stability, making it perfect for tackling rugged trails, jumping rocks, and pushing your limits. Dial in your fit, hit the trails, and run without boundaries.
Scarpa
Golden Gate 2 ATR WMN
The Scarpa Golden Gate 2 ATR WMN is a versatile home-to-trail running shoe, designed for medium to long distances with enhanced comfort, durability, and energy return. Featuring a breathable, durable mesh upper, Bounce Foam midsole for a responsive feel, and the I-Respond outsole for a smoother, more efficient stride, it’s ideal for runners of all weights and experience levels. With Scarpa's ACS (Active Cushioning System) for superior underfoot comfort, this shoe is perfect for daily training, park runs, and transitioning from road to trail with ease.
Scarpa
Golden Gate 2 ATR
The Scarpa Golden Gate 2 ATR is a versatile home-to-trail running shoe, designed for medium to long distances with enhanced comfort, durability, and energy return. Featuring a breathable, durable mesh upper, Bounce Foam midsole for a responsive feel, and the I-Respond outsole for a smoother, more efficient stride, it’s ideal for runners of all weights and experience levels. With Scarpa's ACS (Active Cushioning System) for superior underfoot comfort, this shoe is perfect for daily training, park runs, and transitioning from road to trail with ease.
Scarpa
Ribelle Run 2
The Scarpa Ribelle Run 2 is a high-performance trail running shoe built to provide precision, adaptability, and full support on technical terrains. Featuring the new 3S Frame (Secure, Stable, Sensitive), it wraps the foot for unmatched stability and protection on short to medium-distance trails and skyruns. Lightweight and responsive, it’s ideal for athletes seeking agility and control on rugged surfaces. Plus, it's vegan-friendly, made entirely from synthetic materials with no animal testing.
Altra
Men's Timp 5 Boa
The Altra Men's Timp 5 BOA® is a high-performance trail running shoe designed for precision fit, superior grip, and plush cushioning. Featuring the BOA® PerformFit™ Wrap System, it allows for on-the-go micro-adjustments, ensuring a secure, customized fit throughout your run. The Vibram® Megagrip outsole provides exceptional traction on wet and dry terrain, while the Altra EGO™ MAX midsole offers a responsive, cushioned ride with extra bounce. Designed with zero drop and a roomy FootShape™ toe box, it promotes natural movement and stability, making it perfect for tackling rugged trails, jumping rocks, and pushing your limits. Dial in your fit, hit the trails, and run without boundaries.
Rab
Nitron 12
The Rab Nitron 12 is a lightweight, 12L running pack built for fast-paced mountain adventures and minimalist day hikes. Its vest-style harness and flexible EVA back panel provide bounce-free stability and dynamic movement on technical terrain, while the 100D ROBIC® nylon ripstop fabric ensures durability without extra weight. Designed for efficiency, it features on-the-go access pockets, hydration compatibility (fits a 3L bladder), and versatile pole storage. A stretch chest strap offers a secure fit while allowing breathability, and a zipped entry with a top pocket keeps essentials within reach. Whether tackling steep ascents or rugged trails, the Nitron 12 keeps you moving fast, light, and unrestricted.
Rab
Women's Talus Shorts
The Rab Women's Talus Shorts are the ultimate lightweight, breathable trail running shorts, built for speed, comfort, and unrestricted movement on any terrain. Made with stretchy Matrix™ fabric and a quick-drying Motiv™ Aero liner, they keep you cool on long summer runs. A low-bounce waistband ensures all-day support, while multiple pockets provide smart storage for essentials. With a side split hem for extra agility, these versatile shorts are perfect for everything from daily training to mountain ultras.
Rab
Talus Shorts
Lightweight, breathable, and built for speed, the Rab Talus Shorts are the ultimate all-rounder for mountain running. Designed for unrestricted movement, these versatile 7-inch trail running shorts feature stretchy Matrix™ fabric, an ultralight Motiv™ Aero liner for moisture-wicking comfort, and a supportive, bounce-free waistband. With strategically placed pockets, including two mesh stash pockets and a secure zipped back pocket, they offer essential storage without extra weight. A side split hem enhances mobility on technical terrain, making them ideal for everything from daily training loops to high-altitude ultras.
Rab
Sonic Ultra Tee
The Rab Sonic Ultra Tee is a lightweight, breathable running shirt designed for mountain runners pushing their limits. Made with ultralight Motiv™ Aero fabric, it wicks moisture, dries fast, and regulates temperature, keeping you cool and comfortable on tough climbs. Laser-cut vent holes enhance airflow, while soft microactive seams prevent chafing. With a streamlined fit, built-in stretch, and reflective details, it's perfect for high-output runs in warm conditions or layering at higher altitudes.
Rab
Nitron 18
The Rab Nitron 18 is a lightweight and stable pack designed for fast-moving mountain adventures and minimalist day hikes. Its vest-style harness and flexible, body-hugging back system provide a secure fit, allowing for smooth movement across all terrains. With a sleek, modern design and easy-access pockets, it keeps your essentials within reach without slowing you down. Whether you're tackling technical trails or pushing the pace, this pack offers the perfect balance of comfort, stability and practicality.
Rab
Veil XP 30
Designed for fast-moving mountain adventures, the Rab Veil XP 30 is a fully waterproof, 30L pack built for fast-packing, mountain marathons, and multi-day treks. With taped seams, waterproof fabric, and an IPX4 rating, it keeps your gear dry without the need for extra dry bags, making it an essential for unpredictable conditions. The breathable 3D mesh back system wicks moisture, flexes with your movement, and ensures all-day comfort, while on-the-go gear access lets you grab essentials without slowing down. Lightweight, durable, and streamlined for endurance - this is the pack for serious adventurers who refuse to be weighed down.
Rab
Veil XP 20
The Rab Veil XP 20 is an ultra-lightweight, waterproof trail running pack that will help you defy the elements on fast-paced pursuits in unpredictable conditions. It features a roll top closure with a side buckle option that allows the pack to expand and compress as your kit changes, while fully taped seams and waterproof fabric will protect your kit in all mountain conditions. Rab's 3D mesh back system makes long distance runs more comfortable and you can attach your running poles via the front of the harness or in the side sleeves. The Veil XP is built for adventurous runners and fast hikers on serious long-distance missions.
Altra
Women's Lone Peak 9+
The Altra Women'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.