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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Instinct

PX 3.1L

The Instinct PX 3.1L is a minimalist, lightweight and non-compressive running pack for carrying your essentials, a great option for road & trail running or even your next marathon. It features adjustable front sternum straps and Instinct's unique elastic side lacing system, which allows for a custom fit to almost any body type. Discover stability, absolute freedom of movement, immediate access to storage and unconstrained breathing with the Instinct PX 3.1L.

£85.00 inc. VAT £75.73 inc. VAT

Instinct

Ergo Bottle Pocket

The Instinct Ergo Bottle Pocket allows for extra storage of water, food and smaller essentials, great for use on multi-day stage races and adventures. It features small callipers that allow for easy and secure attachment to various points on your pack. Quick release buckles make it possible to remove the pocket if needed.

£35.00 inc. VAT £31.19 inc. VAT

Instinct

Trail Running Reflex Belt

The Instinct Trail Running Reflex Belt provides you with hands-free storage for all your essentials without the need to wear an uncomfortable backpack or vest. The belt features six pockets with integrated race bib holders and reflective loops for arms-free enjoyment on the trails.

From £35.64 inc. VAT

Zone3

Race Belt with Neoprene Pouch

The Zone3 Race Belt with Neoprene Pouch is a great choice for runners, cyclists, triathletes and a wide range of other uses. This versatile belt offers storage and visibility on-the-move thanks to reflective bands. It's been made with adjustable elastic webbing and features a water resistant neoprene pouch and energy gel loops for extra support on those longer training sessions. There's also handy elastic toggles which will keep your race number secure.

£22.00 inc. VAT £19.76 inc. VAT

INOV8

Speed Cup 0.2

The INOV8 Speed Cup 0.2 has been designed for cup-less and plastic free race events. It's lightweight and super durable, weighing in at just 7 grams. It's also easy to roll up, fold and stash away in your belt or race vest pocket. Suitable for use with both hot and cold drinks, its reinforced brim and moulded thumb loop ensure stability whilst in use. Designed to last, it is easy to clean and dishwasher safe. 100% BPA and PVC free, the INOV8 Speed Cup 0.2 is a safe and reliable item on your kit list.

£10.00 inc. VAT £8.90 inc. VAT

INOV8

Softflask 0.25

The INOV8 Softflask 0.25 is a compressible softflask designed to hold up to 250ml of water or gels. Squeeze to drink or eat contents and remove all air to reduce bounce.

£15.00 inc. VAT £13.37 inc. VAT

Zone3

Race Belt with Lycra Pouch

The Zone3 Race Belt with Lycra Pouch is a versatile product that offers storage and visibility on-the-move. Perfect for use by runners, cyclists, triathletes and for a wide range of other uses. Made with adjustable elastic webbing, each belt comes complete with a lightweight and expandable nylon pouch, reflective band for improved visibility, as well as handy energy gel loops for extra support on those longer runs and training sessions. There are also plastic toggles that will keep your race number in place should you choose to race in it.

£15.00 inc. VAT £13.48 inc. VAT

Chia Charge

Flapjack

The Chia Charge Flapjacks have been made to help you perform better whilst still tasting great. These bars are based around the use of chia seeds to supply you with energy and protein, for use for your regular exercise routine, training sessions or endurance events. Chia Charge bars don't shy from the use of brown sugar or golden syrup, as they understand the importance of carbs for endurance activities. They use basic kitchen cupboard ingredients to create great tasting sports nutrition snacks, to keep you performing well.

From £2.20 inc. VAT

Darn Tough

Women's Run No Show Tab No Cushion Ultra-Lightweight Running Sock

The Darn Tough Women's Run No Show Tab No Cushion Ultra-Lightweight Running Socks provide unbeatable blister protection and moisture-wicking performance. Designed with a minimalist approach, these socks stay in place, guard against dirt and deliver all-day comfort without adding bulk. Whether you're running on trails or pavement, these ultra-lightweight socks help you maintain your best pace, offering exceptional performance without distractions.

From £17.82 inc. VAT

Rab

Women's Sonic Tee

The Rab Women's Sonic Tee is a technical, quick-wicking and lightweight tee that's perfect for mountain running and fast hikes. Designed with a comfortable, relaxed fit and Raglan sleeves, the Sonic Tee is breathable and has been finished with 'Stay fresh' odour control treatment for all day freshness. Lightweight, supple and comfortable, Motiv™ fabrics are engineered for high energy activities, making the Sonic Tee deal for use in your mountain layering system, effectively moving moisture off your skin and drying quickly.

From £31.09 inc. VAT

Rab

Veil 12

The Rab Veil 12 is a lightweight running vest, boosted with extra storage to keep you fuelled, hydrated and prepared for long distance runs and whatever the mountains have in store. Ideal for ultramarathons and long-distance mountain runs, the Veil 12 feels worn rather than carried thanks to the Mono Mesh Chassis which provides support, reduces bounce and contours to your body, giving complete freedom of movement over bumpy terrain. It offers plenty of on-the-go hydration options with two 500ml soft flasks (included) incorporated into the front, as well as space for a 2L water bladder at the back.

From £130.08 inc. VAT

Lock Laces

Lock Laces

Lock Laces are great for use with any shoes, from athletic to casual everyday wear. They are a one-size-fits-all elastic lace and each lace features a lock device and cord clip for securing once laced up. They come available in a variety of colours, including a reflective version for increased visibility in lower light conditions. We also have the boot version available, which are longer than the standard shoe laces, making them suitable for for all kinds of boots from low-cut hiking to military boots.

From £7.02 inc. VAT

Leki

Ultratrail FX.One

The Leki Ultratrail FX.One is a premium, ultra-lightweight carbon trail running pole that features the innovative Trail Shark grip system. It's 30% lighter than its predecessor and optimized for fast and efficient movement on the trails. With quick-deploy folding, glove-like Shark Frame Straps, and a compact 36cm pack size, this pole delivers unmatched performance for runners seeking power, precision, and comfort across any terrain.

From £164.33 inc. VAT

Julbo

Split

The Julbo Split sunglasses are engineered for optimal performance, boasting an ultralight design and sleek contours tailored to shield smaller faces. Utilising suspended lenses for enhanced lightness and ventilation, paired with slim CustomFIT temples featuring Grip Tech, these sunglasses ensure a secure and comfortable fit, even when worn under a helmet.

From £108.38 inc. VAT

Ultimate Direction

FastpackHer 20 2.0

The Ultimate Direction FastpackHer 20 2.0 is a lightweight and durable running pack with a unique design that fits like a vest with water bottles up front, whilst distributing weight like a pack, allowing you to move fast and light on the trail. It features UD's Infiknit and FastFlow technologies, to increase the back panel's breathability and moisture wicking capabilities. This pack also has features plenty of dedicated external storage, a roll-top opening and a full-side external zipper for easy access to anything inside.

From £129.19 inc. VAT

OMM Ltd

Core+ Hoodie Womens

The OMM Ltd Core+ Hoodie Womens is a new concept in active insulation. Built from a synthetic plume woven through a knitted mesh and PrimaLoft Active ultralight insulation, this Core+ offers the warmth of a fleece at less than half the usual weight. Paired with a shell, the Core is an incredibly effective insulator but thanks to near-total air permeability, the lightest breeze can take away that heat. This allows you to keep your Core layer on even when you have warmed up and you can thermoregulate by removing/unzipping your shell (eg. Sonic windproof at 49g).

From £98.02 inc. VAT
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