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Koulin Trail Long Sleeve [Womens] long-sleeved base layer

Lightweight, long-sleeved, crew neck base layer with Polygiene ™ odour resistant technology, for when breathability and moisture-wicking are key

Koulin Trail Long Sleeve base layer pink
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  • Raspberry - Koulin Trail Long Sleeve base layer pink
  • Fontainebleau - Koulin Trail Long Sleeve base layer blue
1. Colour / Size
Fitting guide
8 10 12 14 16
8 10 12 14 16

Please choose an option above

High-wicking, long-sleeved, with a crew neck and Polygiene ™ odour control technology? The AKHQ riders are buying one of these in every colour…

This evolution of our much-loved Koulin base layer has long sleeves and a relaxed crew neck, giving you extra protection from the elements out on rides when the temperatures are cooler.

High-wicking and breathable, with body mapped mesh panels, the Koulin Trail Long Sleeve is ideal for when you're working hard and, err, glistening with beads of sweat. Polygiene ™ treatment eliminates odours, so you'll be able to wear your Koulin to whizz around the trails or on multiday bikepacking adventures until your heart's content.

Flatlocked seams ensure comfort, and a discrete, handy back pocket is ideal for stashing your keys, credit card, or liquorice allsorts.

What is Polygiene?

Polygiene anti-odour treatmentWear more, wash less: it’s every busy adventurer’s dream…
We apply Polygiene™ to garments so that they smell less with wear and need washing less between use: ideal for that multi day getaway (and you’re doing your bit for the environment too).
Polygiene ™ is a silver based treatment that we apply during fabric production. The silver chloride prevents the growth of the bacteria that makes your clothes pong without interfering with the skin’s natural bacteria flora, so it’s comfortable and safe next to your skin. Polygiene ™ is bluesign ® approved (meeting the highest environmental standards) and lasts as long as your clothes do, so you’ll never need to reproof them.
The catch? There isn’t one! You can wear this garment day in, day out, and day back in again without causing a stink – winner!

Key features
  • 3 Year Alpine Bond
  • Polygiene™ odour eliminating technology
  • Long zip neck for venting
  • Body-mapped mesh panels maximise breathability
  • Flatlocked seams for comfort
  • Moisture-wicking and durable
More images
Vital stats

Fabric: 100% Polyester
Polygiene ™ Technology


Weight: 12: 150 g

Origin: China

Size chart Baselayer Tops Womens
Women's baselayer top sizing chart
8 10 12 14 16
Chest (inches) 32" 34" 36" 38" 40
Waist (inches) 25.5" 27" 29" 31" 33"
Hips (inches) 35" 37" 39" 41" 43"
This size chart indicates the body measurements our garments are designed to fit. Measure yourself as described below, and use the size chart to find your size.
Chest: measure around your chest at the widest part. The tape measure should pass under your arms, and be level from front to back.
Waist: measure around your waist at the narrowest part.
Hips: standing with your feet together, measure around your hips at the widest part.
Living with this product
Buying advice: helping you choose the right product
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Koulin Trail Long Sleeve Zip [Womens]

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Koulin Trail Tee [Womens]

Base layer t-shirt

What You Say: Customer Reviews and Comments

1 Reviews


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This fabric works

The vest top has been fantastic over summer, really comfy and doesnot leave you feeling wet whilst moving. I have now bought the long sleeve and worn it on my last three fell runs, perfect with a vest pack and gravitas jacket over. Waiting patiently for the cap sleeve top to come back in. Great range of tops, lovely bright pinks and blues and really well priced. Thanks Alpkit.