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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Fixx Nutrition

Fuel X Pro

Stay strong from start to finish with Fixx Nutrition Fuel X Pro, a clean and gut-friendly endurance drink mix designed for athletes who go the distance. Packed with carbohydrates, electrolytes, and essential amino acids, it delivers steady energy and supports muscle performance during your longest sessions. The easy-on-the-stomach formula means no digestive issues, so you can focus on pushing your limits. Whether you’re running, cycling, or tackling ultra events, Fuel X Pro keeps you fuelled and hydrated without weighing you down.

From £2.36 inc. VAT

Voom Nutrition

Pocket Rocket - Electro Energy

The VOOM Nutrition Pocket Rocket Electro Energy bar delivers twice the energy of a gel with 45g carbs, 120mg electrolytes and B-vitamins in a melt-in-your-mouth bar that fuels muscles, aids hydration and prevents cramp, ideal for endurance athletes wanting rapid and stomach-friendly energy.

£1.50 inc. VAT £1.34 inc. VAT

Voom Nutrition

Recover Fudge

VOOM RecoverFudge is a delicious salted caramel recovery bar, packed with 12g whey isolate protein and a 3:1 carb-protein ratio to speed muscle repair, fight DOMS and refuel your body after exercise. Enjoy it anywhere, it’s the perfect no-fuss solution for a post-workout boost.

£2.89 inc. VAT £2.81 inc. VAT

Altra

Women's Experience Wild 2

The Altra Women’s Experience Wild 2 is a lightweight, high-cushion trail shoe designed for smooth and natural movement over any terrain. Featuring a breathable mesh upper, MaxTrac™ outsole, and a 4mm drop with rocker geometry, it offers secure traction, a roomy toe box, and comfort that lasts all day, perfect for trail runners and hikers alike.

From £115.82 inc. VAT

Altra

Men's Experience Wild 2

The Altra Men’s Experience Wild 2 is a lightweight, high-cushion trail shoe designed for smooth and natural movement over any terrain. Featuring a breathable mesh upper, MaxTrac™ outsole, and a 4mm drop with rocker geometry, it offers secure traction, a roomy toe box, and comfort that lasts all day, perfect for trail runners and hikers alike.

From £115.82 inc. VAT

Mac In A Sac

Speedpro Backpack

The Mac in a Sac SpeedPro Backpack is a lightweight, waterproof 20L running pack built for endurance athletes and trail runners. With a 5,000mm waterproof rating, fully taped seams, and ergonomic, bounce-free design, it provides secure storage and quick hydration access with dual bottle pouches. Reflective detailing, adjustable sternum straps, and multiple pockets make this pack perfect for ultra marathons, wet-weather training, or fastpacking adventures.

£59.99 inc. VAT £51.91 inc. VAT

Injinji

Injinji Run Ultra Crew

The Injinji Ultra Run Crew Socks offer impact-absorbing cushioning, blister prevention, and moisture-wicking comfort. Ideal for road or trail running with a secure crew fit and breathable mesh top. Perfect for long runs and tough terrain.

From £17.82 inc. VAT

Odlo

Women's Essential 365 T-Shirt

The Odlo Women’s Active 365 T-Shirt is a lightweight and breathable performance tee made from 92% recycled polyester and 8% elastane for superior stretch and comfort. Designed for high-intensity workouts like running, training, and gym sessions, it features moisture-wicking fabric and ZeroScent® technology to fight odours and keep you fresh. With a flattering athletic fit and modern colour options, this eco-friendly t-shirt combines style, performance, and sustainability for all-season wear.

Up to 30%
off RRP
From £28.00 inc. VAT

Bearhug

Knee Support

The Bearhug Knee Support Sleeve is a Class 1 medical device designed to reduce knee pain, prevent injury, and support recovery. Made with dual-layer compression fabric and an anti-roll silicone band, it offers medical-grade compression that stays in place, ideal for running, gym workouts, football, hiking, cycling, and more. Whether you're recovering from arthritis, tendonitis, or protecting against ACL/MCL strain, this durable knee sleeve boosts circulation, reduces inflammation, and helps you move with confidence.

From £24.94 inc. VAT

Odlo

Performance Pro Cap

The Odlo Performance Pro Cap is your go-to for hot weather running, hiking, and training. Made with lightweight ripstop fabric for sun protection and laser-cut mesh panels for airflow, this cap keeps heat and sweat under control. The soft, packable brim feels weightless, while a rear drawcord ensures the perfect fit. Fast-drying, breathable, and reflective for low-light visibility, this is high-performance headwear for high-energy days.

From £31.19 inc. VAT

Odlo

Performance Light Shade Cap

The Odlo Performance Light Shade Cap will keep you cool and protected on sunny hikes, runs, and camping trips. This lightweight and breathable five-panel cap has been made from a partially recycled polyamide-elastane blend. Featuring mesh side panels for ventilation, a removable rear sun shield for added coverage, and an adjustable drawcord for a perfect fit, this cap is designed to keep sun and sweat off your face while enhancing comfort and outdoor performance.

From £35.64 inc. VAT

Odlo

Performance Light Bucket Cap

Stay cool and protected with the Odlo Performance Light Bucket Cap, an ultra-lightweight five-panel bucket hat that's perfect for hiking, camping, and sunny adventures. Made from recycled polyester, it features breathable mesh panels, a removable nylon drawcord, and an adjustable fit. Fast-drying and packable for on-the-go performance.

From £31.19 inc. VAT

Odlo

Performance Light Pack Cap

Stay cool and protected with the Odlo Performance Light Pack Cap, a lightweight and breathable cap for running and hiking, made from recycled materials. Featuring mesh panels for ventilation, a quick-dry fabric blend, and an adjustable strap for a perfect fit. Ideal for sunny trails, high-intensity runs, and outdoor adventures.

From £26.72 inc. VAT

Odlo

Performance X-Light Pack Cap

Stay cool and move light with the Odlo Performance X-Light Pack Cap. Designed for runners, hikers, and outdoor athletes, this ultra-lightweight, breathable cap features high-stretch fabric, a packable design, and an adjustable fit. Perfect for warm-weather training, it folds easily into a waist belt or pack, making it your go-to cap for every adventure.

From £26.72 inc. VAT

Ultimate Direction

Fastpackher 30 2.0

The Ultimate Direction Fastpackher 30 2.0 is a lightweight, durable trail and backcountry backpack designed for fast, efficient movement. It combines the comfort of a vest-style fit with front water bottle access and the support of a traditional pack. Upgraded with Infiknit and FastFlow technology, it offers excellent breathability and moisture wicking for all-day comfort. With a roll-top closure, full-side zipper, and multiple external storage options, it’s perfect for hikers, runners, and adventurers who need quick access to gear. Ideal for women seeking performance, versatility, and comfort on the trail.

From £147.01 inc. VAT

Ultimate Direction

Ultra Vest

The Ultimate Direction Ultra Vest is a lightweight and breathable hydration vest that's been designed for long-distance comfort and performance. Made with soft recycled monomesh and stretch mesh panels for a secure, ergonomic fit, this unisex running vest includes two HydraPak Body Bottle 500s, multiple water-resistant pockets, and customizable trekking pole carry. Features like bounce-free sternum straps, reflective details, glove-friendly zippers, and a reservoir-compatible sleeve make it the perfect ultra running vest for endurance athletes. Ideal for men and women, available in a full range of sizes.

From £124.74 inc. VAT
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