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Men's Thorpe Baselayer

Regular price £69.99
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The Thorpe Ultra-Fine Merino Baselayer combines 68% superfine Merino wool with 32% TENCEL™ Lyocell for natural temperature regulation, moisture management, and all-day comfort. Lightweight, breathable, and odor-resistant, it keeps you warm when wet, cool when sweating, and chafe-free on every mile. With a body-mapped fit, thumb loops, fold-over mitts, and YKK® half-zip, the Thorpe moves with you—solo or layered—for versatile, trail-ready performance.


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Size & Fit

Standard fit to allow free circulation of air with minimal restriction.

Can be worn with or without a thin layer underneath.

Use a ribbon tape measure to check against our size chart. For the chest, measure underneath the armpits with the tape measure straight around.

Materials & Tech

The Thorpe combines 68% superfine Merino wool (17.5 microns) with 32% TENCEL™ Lyocell. This premium blend delivers natural temperature regulation, moisture management, softness, and durability—without using polyester.

The combination outperforms either fibre alone:

  • Moisture control: TENCEL™ wicks sweat up to 3x faster than Merino.
  • Cooling: TENCEL™ provides a natural cooling effect, making the fabric lighter and fresher.
  • Warm when wet: Merino insulates even when damp.
  • Durability: Together, they resist pilling and abrasion.
  • Softness: Extra-smooth feel against skin for chafe-free comfort.
  • Eco-friendly: TENCEL™ is sustainably sourced from wood pulp

Unlike synthetics, the Thorpe has no plastic feel and doesn’t trap odour. Unlike cotton, it won’t soak, chill you when wet, or cause chafing. You get natural performance, comfort, and sustainability in one layer.

Wash & Care

Wash when needed with warm water and mild soap, ensuring you remove mud from locks, baskets, and tips. Wipe with a cloth, air dry completely before reassembly to prevent corrosion, and avoid using oil on inner mechanisms, which can cause slipping.

Wash: Delicate/wool cycle, cool water (30°C), with wool detergent (we recommend Grangers Merino Wash).

Avoid: Fabric softeners, bleach, or harsh detergents.

Dry: Lay flat or on a rack, out of direct sunlight. Avoid tumble drying (unless label allows on low).

Extra tips: Wash inside out to reduce pilling. Rinse stains promptly. Store in a cool, dry place.

Free Next Day Delivery

Free, next day delivery on all UK orders.

Same day dispatch on orders made before 8pm (Sun-Fri), 5pm (Sat).

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Free and simple 90-day UK returns.

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Temperature Regulation

Mouisture Wicking

Soft Feel


Industry Awards

Runners World, Highly Commended★★★★★

Products of outstanding quality, thoughtful design and exceptional value.

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

People's choice award at the inaugural NRS awards.

Women's Running Awards 2024, Winner★★★★★

Curbar 5L - Best Race Vest, Helvellyn Carbon PRO - Best Poles, Lomond Thermal - Best Jacket, Double Layer Socks - Best Value Socks

The Guardian, Best Christmas Gifts for Runners 2024★★★★★

The Catbells V2 Aluminium Z-Poles have made the list for their balance support.

Outdoors Magic, Outdoor 100 Gear 24/25★★★★★

The Exmoor Waterproof Jacket and the Catbells V2 Aluminium Z-Poles have made the list.

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.

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

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

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.

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

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

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Free Royal Mail Tracked48 shipping for all UK orders over £50.

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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