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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Odlo Men's ACTIVE X-WARM ECO Long-Sleeve Baselayer Top

ODLO’s ACTIVE X-WARM ECO Long-Sleeve base layer top for men is a superb multifunctional base layer that you can’t do without this winter. The ACTIVE X-WARM range has been designed to provide advanced insulation when temperatures plummet, using soft pads to give additional warmth where you need it most, while excellent moisture management properties guarantee you stay warm and dry at all times.

From £53.46 inc. VAT

Odlo Men's ACTIVE X-WARM ECO Half-Zip Turtleneck Baselayer Top

Reducing reliance on producing new polyester, ODLO’s innovative ODLO’s ACTIVE X-WARM ECO Zip Turtleneck base layer top for men is crafted entirely from recycled fibres – lowering its carbon footprint without making sacrifices on technical features. Designed to endure the elements, this piece is ideal for a wide range of winter pursuits thanks to its warm, lightweight and comfortable properties.

Up to 25%
off RRP
From £48.75 inc. VAT

Odlo Men's ACTIVE WARM ECO Long-Sleeve Baselayer Top

The Odlo Men's Active Warm Eco long sleeve base layer top is a versatile base layer top made with 100% recycled polyester fibres that are kind to both your skin and the environment, without compromising on performance. Featuring a warm, breathable and soft-touch design, this top has been designed to meet the demands of alpine pursuits. It also features Odlo's ZeroScent technology that naturally reduces odour build-up thanks to its anti-microbial properties.

From £40.09 inc. VAT

Odlo T-Shirt S/S Crew Neck ACTIVE SPINE 2.0 Women's

The Odlo Women's Active Spine 2.0 running t-shirt combines advanced knitting technology with cutting-edge biomechanics to create a posture-enhancing running t-shirt that's more breathable than ever. Odlo's award winning Active Spine technology help to pull back the shoulders, enhancing your posture and in turn increasing oxygen intake and reducing muscle fatigue.

Up to 50%
off RRP
From £30.00 inc. VAT

Odlo T-Shirt S/S Crew Neck ACTIVE SPINE 2.0

The Odlo Men's Active Spine 2.0 running t-shirt combines advanced knitting technology with cutting-edge biomechanics to create a posture-enhancing running t-shirt that's more breathable than ever. Odlo's award winning Active Spine technology help to pull back the shoulders, enhancing your posture and in turn increasing oxygen intake and reducing muscle fatigue.

Up to 50%
off RRP
From £30.00 inc. VAT

Odlo Women's ACTIVE X-WARM ECO Half-Zip Turtleneck Baselayer Top

A sustainable approach to thermal layering options, this women’s ACTIVE X-WARM ECO Zip Turtleneck base layer top minimises its environmental impact with losing focus on performance. Crafted from 100 percent recycled fibres, this essential base layer is designed to protect you in the world’s most extreme conditions – keeping the warmth where it should be whilst creating a barrier against the elements.

Up to 25%
off RRP
From £48.75 inc. VAT

Petzl Actik Core

The Petzl Actik Core is a rechargeable, high-performance headlamp with a powerful 625-lumen beam. Featuring the Petzl Hybrid Concept, it comes with a Core battery and can also use three AAA batteries for ultimate flexibility. With USB-C charging, red lighting to preserve night vision, and a reflective, recycled headband, it’s ideal for trekking, running, or mountaineering. Its phosphorescent reflector makes it easy to find in the dark, while a lock function prevents accidental power-on. Lightweight, robust, and eco-friendly, the Actik Core is a go-to headlamp for every outdoor enthusiast.

From £58.07 inc. VAT

Petzl Iko Core

The rechargeable Petzl Iko Core headlamp combines multiple technologies to offer 500 lumens at only 79 g. Featuring an AIRFIT® headband, an ultra-thin lamp body and an energy source worn in the rear, the headlamp is balanced and comfortable enough to be imperceptible. The multiple LEDs are ideally distributed to provide uniform lighting, for optimal visual comfort.

From £65.64 inc. VAT

Petzl Tikkina

The Petzl Tikkina headlamp is a simple and reliable lighting solution for your outdoor adventures or everyday needs. With 300 lumens of brightness and a comfortable wide beam, it’s great for reading in the tent, moving around camp, or nighttime walks. Its compact size and lightweight design make it easy to slip into a backpack or pocket. Powered by three included AAA batteries and also compatible with the Petzl Core rechargeable battery, it offers flexibility for both casual and frequent use. With intuitive operation and eco-conscious features, the Tikkina is your go-to headlamp for just about anything.

From £18.42 inc. VAT

Petzl Tikka

Lightweight, reliable, and easy to use, the Petzl Tikka headlamp delivers 350 lumens of clean, wide-beam lighting that's perfect for camping, hiking, and household use. With red lighting to preserve night vision, a single-button interface, and a compact size that fits in your pocket, it's built for convenience. Its hybrid design works with both standard AAA batteries and the Core rechargeable battery. A glow-in-the-dark reflector helps you find it easily at night, while the eco-conscious headband and storage pouch add thoughtful touches. Simple, dependable, and versatile, the Tikka is a classic for a reason.

From £26.00 inc. VAT

Raidlight Activ MP+ Jacket

A comfortable, stretch waterproof jacket that is suitable for trail running and general outdoor use. The Activ MP+ jacket will give you protection from the elements when you need it. Designed to be both breathable and waterproof, the Raidlight Activ MP Jacket has been constructed using their signature MP+ membrane fabric. For nearly 20 years the MP+ membrane has been used by runners and outdoor enthusiasts and is renowned for its breathability, waterproofness, and durability.

Up to 50%
off RRP
From £67.50 inc. VAT

Rab Xenon Glove

The Rab Xenon Glove is a lightweight, insulated glove that can be packed down into it's own stuff sack. A micro-fleece lining provides a high next to skin comfort, while the PrimaLoft Gold Insulation does the job of keeping your hands warm. The Pertex Quantum outer helps stave off some wind and rain with a DWR finish, and a contrast PU material on the palm adds durability. The Xenon is perfect for a day of leisurely mountain activities, a warm liner, or just packed away in your bag.

From £48.85 inc. VAT

Raidlight Activ Tight W

The Women's Activ Tight from Raidlight is an all-rounder not to be overlooked! With stretchy material, it fits tight and has unparalleled comfort. It is made of a recycled lightweight polyester fabric that is quick drying. It also comes with a handy zip pocket at the back to keep valuables such as keys and money.

Up to 50%
off RRP
From £25.00 inc. VAT

Salt Stick Fastchews

Salt Stick Fastchews are fast-absorbing, chewable electrolyte tablets designed to keep you hydrated, energized, and cramp-free. Perfect for athletes, outdoor workers and travellers, FastChews deliver a clean, science-backed blend of sodium, potassium, magnesium, calcium and chloride - the electrolytes that your body loses through sweat. The quick-dissolve formula absorbs 2–4x faster via the mouth’s lining, helping you combat heat stress and fatigue on the go. No sugar, no fillers, just rapid and reliable hydration wherever life takes you.

From £3.85 inc. VAT

Sidas Run 3D Protect

The Sidas Run 3D Protect insoles are designed for runners looking for maximum comfort and protection in each stride! The gel at the heel provides exceptional absorption and the section on the front of the foot encourages energy return. These insoles have an anatomic shape ensuring your foot is supported, keeping your feet safe while you run!

From £28.37 inc. VAT

Sidas Run 3D

The Sidas Run 3D provide Arch Support for those with active lifestyles. They aim to prevent pain for the user and are ready to wear from out the box! Perfect for any runner- or anyone who runs as part of their warm up/ down for other sports. Provides a unique combination of comfort, stability and support.

Up to 50%
off RRP
From £15.76 inc. VAT