Womens Merino
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  • alpkit womens kepler merino long sleeve base layer in charcoal grey|rg
  • alpkit womens kepler merino long sleeve base layer in cosmos purple|rg
  • alpkit womens kepler merino long sleeve base layer in charcoal grey front|rg
  • alpkit womens kepler merino long sleeve base layer in charcoal grey back|rg
  • alpkit womens kepler merino long sleeve base layer in charcoal grey thumb loops|rg
  • alpkit womens kepler merino long sleeve base layer in charcoal grey logo|rg
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Merino

Kepler Long Sleeve

Long sleeve pure ultrafine merino base layer

$74.99 $84.99

Breathable and comfortable long-sleeved premium merino base layer for demanding sports in hot, cold, wet or dry
  • Size
  • Colour
    • alpkit womens kepler merino long sleeve base layer in cosmos purple|rg
    • alpkit womens kepler merino long sleeve base layer in charcoal grey|rg

Pre-order now for despatch from . We'll keep you up-to-date with your order progress and despatch as soon as it is available.

  • 3-Year Guarantee

  • Free Delivery over $99

  • Free Returns

  • All Duties, Taxes & Tariffs Paid on UK origin products

Kepler Women’s Long Sleeve – nature’s original technical base layer. Kepler is made from 100% pure merino wool — soft, breathable, and built to perform across seasons. No blends, no synthetics. Just nature doing what it does best.

Supernatural comfort, all-day performance

  • Pure merino wool – breathable, insulating, and pong-free

  • Ultrafine fibres (17.2 microns) – soft next to skin, never itchy

  • Long sleeves offer warmth, sun protection and easy layering

Reliable warmth with natural stretch and softness

Kepler is your go-to for cool starts, breezy ridgelines, and long, layered days outdoors. The 160gsm fabric regulates your temperature across conditions — keeping you warm under a fleece and cool when the pace picks up. Merino’s natural stretch and breathability help you move freely and stay dry, while flatlock seams and a clean silhouette make it easy to wear under a shell, pack or harness.

Thanks to merino’s natural anti-microbial properties, Kepler stays pong-free for days — ideal for multi-day hikes, low-wash living, and fast-moving trips where every gram and wash counts.

Lower impact. Longer lasting. Naturally better.

Kepler is made from 100% non-mulesed merino wool, certified to the Responsible Wool Standard. It’s renewable, traceable and biodegradable — built to go further with less impact. Backed by our 3-Year Alpine Bond and tested through years of movement, weather and wear.

Features

Key Features

  • 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
  • Pure merino from 100% non-museling farms
  • 3 Year Alpine Bond

Vital stats

Fit

Slim

Construction

Fabric: 100% pure merino, 160 gsm, 17.5 microns
Seams: Flatlock stitching

Weight

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

Origin: China

Women's Base Layer Sizing
UK 6 8 10 12 14 16 18 20
Chest
Inches
CMs

30"
76

32"
81

34"
86

36"
91

38"
97

40"
102

42"
107

44"

112

Waist
Inches
CMs
24"
59


25.5"
65

27"
69

29"
74

31"
79

33"
84

35"
89

37"

94

Hips
Inches
CMs

33"

84


35"
89

37"
94

39"
99

41"
104

43"
109

45"
114

47"

119

Sleeve
Inches
CMs

28"

71.5


28.5"
72.5

29"
73.5

30"
76

30.5"
77.5

31.5"
80

32"
81.5

33"

84

EU
USA

34

2

36
4
38
6
40
8
42
10
44
12
46
14

48

16

How to Measure

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.
Sleeve - With your arms relaxed by your side, tilt your head down and ask a friend to measure from the bone at the base of your neck, over your shoulder and down your arm to the fold at your wrist.

Fit Guide

Tight

Close fitting designed to conform to your body shape.

Slim

Slim and slightly contoured but not form fitting.

Regular

A comfortable fit that's not too tight, nor too loose.

Relaxed

A looser fit with a bit more space but not too baggy.