Kepler Zip Top
£69.99
Kepler Women’s Long Sleeve Zip – natural performance, extra control. Kepler Zip gives you all the breathable, odour-resistant comfort of pure merino — with a front zip for easy temperature control on the move. No synthetics. No pong. No itchy and scratchy.
Pure merino comfort with on-demand ventilation
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100% certified merino wool – breathable, insulating, odour-resistant
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Ultrafine fibres (17.2 microns) – soft against skin, never itchy
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Front zip offers instant cooling when the pace picks up
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Long sleeves for warmth, sun protection and layering ease
Comfort that adapts when conditions shift
The Kepler Zip is ideal for days when your effort and environment constantly change — whether you’re starting before sunrise, hitting steep climbs, or moving through exposed terrain. The 160gsm merino balances insulation and breathability, while the zip neck gives you fast, fuss-free airflow when you need it most.
Merino’s natural anti-microbial properties mean you can wear it for days without washing — it stays pong-free and fresh through long hauls and multi-day trips. The shaped fit moves easily under mids or shells, with flat seams to prevent rub from rucksack straps.
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 — and designed to be worn again and again with less washing, less plastic, and less impact. Backed by our 3-Year Alpine Bond.
Features
Key Features
- Long-sleeved ultrafine merino base layer
- Longer sleeves give added coverage and protection
- High collar protects from the draughts and the sun
- ¼ zip gives you room to breathe
- 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% merino, 160 gsm, 17.2 microns
Seams: Flatlock stitching
Zip length: 20 cm
Weight
8: 160g; 10: 175 g; 12: 185 g; 14: 195 g; 16: 205 g
Origin: United Kingdom
Standard delivery to UK addresses is free over £50.
Next Day deliveries will be shipped same day if you place your order before 2pm Monday - Friday.
If you are not happy or have changed your mind, you can return your unused product within 123 days of placing the order for a refund.
Simply return it to us, free of charge, with all the original packaging.
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.