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Product details
Merino Wool Comfort
Ultra-fine merino wool provides natural odour resistance and optimal temperature regulation.
Cooling TENCEL® Blend
TENCEL® gives superior cooling and moisture wicking management, along with a silky-smooth feel.
Chafe-Free Seams
Flatlock seams reduce chafing for long-distance comfort on the trails.
Ventilating Half Zip
YKK® half zip allows easy ventilation and temperature management when things get warm.
Secure Thumb Loops
Thumb loops provide a secure fit when layering up in colder conditions.
Convertible Cosy Mitts
Cosy mitts can be rolled over cold hands for extra warmth.
Reflective Night Visibility
Reflective logos for extra visibility on night runs.
Built for natural performance, the Thorpe Ultra-Fine Merino Baselayer blends 68% superfine Merino wool with 32% TENCEL™ Lyocell for lightweight, breathable comfort that works as hard as you do.
It keeps you warm when it’s cold, cool when you’re working, and fresh when the miles start adding up.
The body-mapped fit moves with you whether you’re layering up or heading out with just this layer.
Thumb loops, fold-over hand mitts, and a YKK® half-zip give you options when the temperature drops or picks up.
Thermal
Wicking
Antibacterial
Recognised by industry experts
"My love affair with this top started the minute I put it on. Dont lets its softness or light feel put you off its incredible ability to keep you warm, whilst also wicking away moisture from the body. The extra long sleeves are incredible for chilly days or when its not quite cold enough for gloves and the zip detail means the neck opens really wide if the sun peaks through (and it pulls down lower than your sports bra so doesnt chatf!) and vice versa does up snug round the neck for colder runs. My only complaint is I only have 1! My absolute favorite top to wear. PS I didnt just test this I wore it for three days covering 137 miles of the coast to coast route, no washing, just hung it up every night and it felt fresh and dry every morning, so its a fantastic option for fast packing of multi day races."
"It's the perfect top for those cold mornings and when the day gets warmer. I paired it with the Exmoor PRO jacket on raining days and the combo ensured I didn't get too hot. I love the zip so you can unzip when it gets warmer or zip up when it gets cold. The hand mits are a great feature, but you can also roll up the sleeves when it gets warmer. It washes well and dries quickly."
"I really like it, I've worn it loads over the last few weeks for running, hiking and as my sleeping layer when camping. The long zip is great, it makes the top useful for year-round use as it allows you to unzip to vent the heat if you are getting warm. The built-in mitts are useful, particularly when it's not quite cold enough for gloves. I'd happily use this as my first choice base layer all year round."
Technical details
- Material 68% Superfine Merino Wool, 32% Tencel™ Lyocell
- Fit Body-mapped Design for Movement
- Ventilation YKK Half-zip for Temperature Control
- Seams Flatlock for Comfort
- Sleeves Thumb Loops and Built in Over-mitts
- Weight From 180g
Frequently asked questions
Size & Fit
Standard fit to allow free circulation of air with minimal restriction.
Can be worn with base or mid layers 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 fullest part of your bust.
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: 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).
Free Returns
Free and simple 90-day UK returns.
No printer needed, and collect from home options available with our tracked Royal Mail service.
365 Day Guarantee
365-day guarantee on all of our products. Outstanding customer service, rated 5 stars from over 20,000 happy customers.
Ratings & reviews
Women's Thorpe Baselayer
Lightweight, ultra-fine merino trail running baselayer blending superfine wool and TENCEL™ for breathable comfort. Temperature regulating, moisture-wicking, and odour-resistant, with a body-mapped fit.
Free Next Day UK Delivery
Late 8pm Order Cut Off Sun-Fri (5pm Sat)
Free 90 Day Returns, 1 Year Guarantee
