UK's Fastest Growing Trail Running Brand | Over 50,000 Orders Shipped

Trail Running Socks 2 Pairs
Trail Running Socks 2 Pairs
Trail Running Socks 2 Pairs
Trail Running Socks 2 Pairs
Trail Running Socks 2 Pairs
Trail Running Socks 2 Pairs
Trail Running Socks 2 Pairs
Trail Running Socks 2 Pairs

Trail Running Socks 2 Pairs

Regular price £19.99
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Especially designed for the trails with anti-blister double layer construction. Zone cushioning and shaping for superior fit. Made from Prolen®, a revolutionary and premium yarn for optimal thermo regulation, durability and comfort. Look after your feet, Harrier trail socks for the win!


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Only 296 items in stock!

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What’s the deal with Prolen® yarn?

We wanted our trail socks to be superior quality so we chose Prolen® yarn to make them. The lightest fibre available for sock manufacturing, its density is 50% lower than cotton and has superior properties in relation to temperature control, comfort and durability compared to wool and polyester.

What actually makes Harrier socks anti-blister?

Our socks are purposefully dual layer. This double layer of material means when your foot moves in your shoe when running, the fabric against your skin moves significantly less. This dramatically reduces rubbing, blisters and sores which happens with single layer socks.

Blisters and sores are very common in ultra running, we’ve all seen those horrible post race foot photos on social media! So it’s essential to treat your feet to socks which will prevent this from happening so it’s not your feet that let you down on a key training or race day.

How long will my trail socks last?

Prolen® yarn has revolutionary durability properties. It holds out against abrasion, tension and tearing. Abrasion resistance in our socks is 2.5 greater than cotton or wool. Perfect for all those sweaty and muddy long runs!

Thanks to the fact this yarn is dope-died, they maintain colour freshness and performance through the toughest training and weather conditions.

How good are they in hot and cold weather?

Maintaining an ideal temperature is key to foot comfort especially for long runs in the hills. Socks made from Prolen® yarn have the properties to maintain ideal temperatures against the skin.

In the cold winter months, Prolen® yarn has the lowest conductivity of any sock material which creates optimal insulating power.

In warmer weather, our socks do not absorb moisture from sweating. Moisture leaves the sock layer without saturation, meaning you stay drier faster and significantly longer compared to wool, cotton and polyester.

How do I wash my trail running socks?

Our socks will not shrink or fade in the wash and can be washed at 40 degrees on a normal cycle and hang dry. Please wash dark colours separately.

Do not bleach, do not iron, do not dry clean, do not tumble dry.

Materials and Tech Info

Inner 100% Prolen® polypropylene

Outer 98% Polyamide, 2% Elastane

Manufactured to OEKO TEX Standard 100

Loved By

Harrier Trail Running Socks Awards and Gear Reviews

Tasha Thompson, Founder - Black Girls Do Run UK

★★★★★

“I covered over 10 miles of running and walking over the course of a day wearing these socks and it's fair to say the Harrier Trail Socks are terrific!”


Industry Awards

The Independent, Best Race Vest Comfort 2021★★★★★

Extremely comfortable, form-fitting race vest that’s thoughtfully designed and good value for money.

Best Value Award, Wild Ginger Running★★★★★

The race vests and Helvellyn poles have won our Best Value Award!

The National Running Show, Winner, Retailer of the Year Award 2024★★★★★

People's choice award at the inaugural NRS awards.

Women's Running, Winner, Reader's Choice Awards 2023★★★★★

Absolutely brilliant... kit that works. Rugged, comfortable and a good price. Harrier bundles make getting trail ready a breeze.

Outdoors Magic, Best Hydration Pack 2021★★★★★

Everything a trail runner needs, at a fraction of the cost of many of its competitors. Innovative, feature-packed made by runners, for runners.

Fast & Tracked Delivery

Free Royal Mail Tracked24 shipping for all UK orders over £50.

Free Returns

Free 90 Day Returns and Exchanges Using Our Fast & Tracked Royal Mail Returns Service.

Help and Advice

We are always there for you if you need help finding the perfect items or choosing the right size. Talk to us support@harrierrunfree.co.uk

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