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Kepler Long Sleeve [Womens] pure merino base layer

Breathable and comfortable long-sleeved premium New Zealand merino baselayer for demanding sports in hot, cold, wet or dry

womens thermal long-sleeved merino baselayer kepler eggplant
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  • Eggplant - womens thermal long-sleeved merino baselayer kepler eggplant
  • Seagrass - womens thermal long-sleeved merino baselayer kepler seagrass
1. Colour / Size
Fitting guide
8 10 12 14 16
Egg Plant
8 10 12 14 16
8 10 12 14 16

Please choose an option above

Alpine summer, Scottish winter, autumn on the gritstone… Those merino sheep have catering for every climate down to a T.     

We use 100% genuine superfine non-mulesing New Zealand merino wool to ensure our Kepler long-sleeved top deserves a place in everyones outdoor layering system.

The lightweight baselayer top is a staple piece of most peoples layering systems. Kepler fits right in there with its excellent performance over a vast range of conditions. Quite simply it is a garment that does many things really rather well. Breathable, wicking, fast drying and famously odour resistant, merino can be worn in the hot, in the cold, in the wet and in the dry.

For all round comfort over extended durations merino is our baselayer of choice.

Thumb retainers in the cuffs stop the arms riding up to expose your wrists to the cold, useful when your activity involves a lot of reaching.

Flatlock seams and an anatomical cut enhance the natural next-to-skin comfort of merino. 


The Kepler range uses beautiful, ultrafine merino for a luxuriously comfortable next-to-skin feel.

With thermoregulatory and anti-microbial properties, merino wool is more than a match for day-in, day-out use across the temperatures in changeable mountain conditions, help you to stay fresh, comfortable, and protected no matter what the weather decides.

We use 100% natural New Zealand merino from non-mulesing farms.

Key features
  • 3 Year Alpine Bond
  • Long-sleeved ultrafine merino base layer
  • Longer sleeves give added coverage and protection
  • Thumb loops keep sleeves in place
  • Ultrafine merino for softness and comfort
  • Anatomical cut and flatlock seams feel great next to the skin
  • Merino wool minimises odours
  • High warmth-to-weight ratio
  • New Zealand merino from 100% non-museling farms
More images
  • Akmodel-alice-kepler-ls-seagrass-3 - Alice rocking the Seagrass Kepler Long Sleeve (size 8)
  • Wmns long sleeve plum back - Plum
  • Wmns long sleeve plum front - Plum
  • Wmns long sleeve plum side - Plum
  • Wmns long sleeve plum detail 01 - Plum
  • Wmns long sleeve plum detial 02 - Plum
  • Wmns long sleeve seagrass front - Seagrass
  • Wmns long sleeve seagrass back - Seagrass
  • Wmns long sleeve seagrass side - Seagrass
  • Wmns long sleeve seagrass detail 01 - Seagrass
  • Wmns long sleeve seagrass detail 02 - Seagrass
  • Kepler Long Sleeve Womens -
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  • UVd4d2EybDBJRzV2ZGlBeE5TQnphRzl2ZEMwZ1l6QmhNamszTWc9PQ== -
Vital stats

Fabric: 100% New Zealand merino, 160 gsm, 17.2 microns
Seams: Flatlock stitching


Weight: 8: 144 g; 10: 152 g; 12: 161 g; 14: 177 g; 16: 186 g

Origin: China

Product Care Information

The better you look after this merino garment, the better it will look after you. Give your Kepler a long, happy life with these tips:

Hand wash your merino in lukewarm water, or gentle machine wash.

Darn any holes as soon as possible so they don’t grow.

Avoid snagging, vigorous machine washing, putting your finger through the fabric, and hungry moths.

Size chart
Women's sizing
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.


The base of all layering

Start from a good base from which to build up your flexible layering solutions


Merino Wool vs. Synthetic

Designer Ronnie explains how to choose between synthetic and merino garments


Layering system

Layering up is the best way to be flexible and take more control over the conditions.


Hillwalking Kit List

With such beautiful hillwalking destinations nearby, there's no excuse not to get out on the hill! Don't forget these vital bits of kit...


Related products

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Kepler Long Sleeve [Mens]

pure merino long-sleeved base layer top


Kepler Zip Top [Womens]

pure merino wool ¼ zip base layer top with long sleeves


Kepler Briefs [Mens]

merino underwear


Kepler Briefs [Womens]

pure merino wool underwear for active use


Kepler Boxers [Womens]

pure ultrafine merino wool boxers


Free UK Shipping on all orders

Free 2 day delivery to UK addresses is included in all orders so the price you see is the price you pay. Upgrade to next day at the checkout.

Free No hassle 123 Day Returns

Buy with confidence and if you are not happy, change your mind or want a swap for any reason then return it for free and we will exchange or refund no question. The price you see is the price you pay. Just return the kit as you receive it - in its original condition, unused, unworn, with original packaging and fit for resale.


We offer a range of finance options from 0% to 9.9% starting on orders over £500. Please give us a call on 01773 417007 to apply for finance. Our customer support heros will take your order and talk you through the quick and easy application process.

Alpine Bond

If one of our products does not meet your expectations upon delivery or, if it does not live up to the demands placed upon it, please return it within 3 years of purchase for repair, replacement or refund. If the problem is our fault then we will do this to your satisfaction if it’s your fault then we will help out the best we can.


2 Reviews


Used this product?

Write a review
Warm, fast dry.

Good, No smells, it's no fit like short t shirt.


Bought 3 of these for the other half as I was really pleased with the 2 mens versions that I have got already. We had measured her with a t-shirt on, definitely 34". Looked at the size guide - needs size 10. Mine were close fitting so I accepted this and sat back waiting to receive them. They took a while to arrive, a couple of days more than the jacket ordered a day later. When they arrived they were huge on her, so had to go back for an exchange for a size 8. Might be worth putting the measurement on your order and letting Alpkit choose the size.

This is the first time in 10 years of ordering that I have ever had to return anything.



Women Climb Kepler Merino Top Review

I love the design of this women specific base layer top. It looks as good on its own after a hard day of climbing as it does at the crag under all your layers. The people at Alpkit have clearly thought about every aspect of this garment and tested it out to create a beautifully designed and functional garment that is perfectly fit for purpose

Emily Pitts

WomenClimb October 2015 - Emily Pitts


TGO Magazine Reviews Kepler

the best value top tested


TGO June 2017 - Chris Townsend


Kepler Merino

this base layer is astonishingly good value. It’s great on, light enough to stash in your pack just in case an extra layer is in order and nice enough to hang out in at the end of your ride


Singletrack Magazine January 2016 - Beate Kubitz

Kepler ls

Kudos for Kepler Base Layers

It wicks effectively, it's good on its own, with a wind or waterproof, or as the basis for layers on really cold days.


off-road.cc March 2018 - Jim Clarkson

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Second Summit Kepler Review

Second Summit put Kepler to the test

Hard to beat for the money. Well made, warm, dries well, comfortable and stays odour free. Great product from Alpkit, and one that would be well used on multiday trips. Order a size down if you like athletic fit.

Second Summit

Second Summit February 2016 -


Wild Running Alpkit Kepler Top Kit

Jen Benson reviews her favourite running kit including Alpkit Kepler pure merino top

The Alpkit Kepler (RRP £29) comes in both short- and long-sleeved versions and provides a toasty base for any layering system

Jen Benson

Wild Running October 2015 - Jen Benson


Women Climb Review Kepler

Glowing review of our Kepler from Women Climb

The people at Alpkit have clearly thought about every aspect of this garment and tested it out to create a beautifully designed and functional garment that is perfectly fit for purpose.

Women Climb

Women Climb April 2016 - Women Climb


Wild Running Top Mens Winter Running Gear

Sim Bensons ideal winter running gear

Merino wool base layers are normally the warmest, and as long as they are ethically produced you can feel happy wearing a natural fibre. I wear either my Alpkit Kepler (RRP £29) or my Howies short-sleeve base layer (RRP £45) pretty much all the time. They look great as well as performing brilliantly in all but the warmest weather. Synthetic base layers dry faster than Merino, but Merino retains its warmth even when wet

Sim Benson

Wild Running October 2015 - Sim Benson


Kepler Merino Review in Velome

Mountain biker Jessica Strange puts our Kepler Merino top to the test in South Wales

The top is really lightweight, soft and totally breathable which is ideal for a day's riding as I felt both warm and "airy"


my Alpkit Merino wool layer whist riding was really comfortable


Great quality, fit and features


Velome September 2015 - Jessica Strange