Perfect Half Zip
"Love the colour and pattern - so subtle. Beautiful half zip!"
Free shipping and returns
$165.00
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$165.00
We’ve recently updated this style from 260 Tech to 260 Oasis. While the name has changed, the product hasn’t. It’s built with the exact same design, composition, quality and performance that define this style. As we move through this transition, new and old packaging will be shipped randomly, and some items may still arrive labelled 260 Tech on packaging or swing tags. We know that can be confusing, but rest assured, you’ve received the right product.
A warm merino base layer top with a unique jacquard pattern, the Merino 260 Vertex Long Sleeve Half Zip Alpine Geo is a go-to piece for winter layering—ideal for skiing, snowshoeing and other cold-weather pursuits. The classic snowflake-inspired jacquard pattern is a timeless design that's perfect for the winter months.
Good for:

100% Merino Wool; Exclusive of decoration
Machine Wash Cold; Gentle Cycle. Wash With Like Colors. Do Not Use Softeners. Close All Fasteners Before Washing. Do Not Bleach. Do Not Tumble Dry. Line Dry In Shade. Cool Iron. Do Not Dry Clean.
Model measurements
Lois is wearing a size M. Height: 171cm / 5'7". Waist: 63cm / 24".
Key product measurements
Back High Point Shoulder to Hem: 67cm (Based on size M)
Fit
Slim
Overall rating: 4.8333335 / 5 from 72 reviews.
This thermal half-zip top is a top choice for winter layering, praised for its warm merino base layer, timeless snowflake-inspired pattern, and perfect fit. Customers appreciate its quality, design, and the variety of attractive colors.
Review topics: ["feel","top","fit","colour","pattern","quality","design","buy","weight","looks","zipper","base layer","size","sleeves","style","piece","wear","underwear","skiing","print","icebreaker"].
"Love the colour and pattern - so subtle. Beautiful half zip!"
— Charlie (5/5)
"This is a fantastic top - because of the weave it’s quite different to my other i/b layers. It feels thicker because of the weave but fits close to the body, yet I can comfortably wear a vest and a long sleeve base underneath (I feel the cold). I use it for skiing and running. I would prefer to have thumb loops as I like the option of using them/covering my wrists with and without gloves. Bought an XS, I’m 5’6” and the fit was v good."
— Angela (5/5)
"Love the timeless pattern and match them with plain black oasis leggings. Nice and warm and great for layering when snowboarding. I'm 5'3" and sized up to Medium so I have a bit more room to wear a layer under it."
— merino r. (5/5)
"I reach for this top every time I go outdoors. I love the colours, the design and the fit. I am very happy with this purchase as I am with every other one I have made from Icebreaker. Thank you!"
— Rosalind F. (5/5)
"I bought the top (along with a long sleeve tee for a base layer) to wear on a bike camping trip. It was the perfect weight for almost every temperature and situation."
— Karen S. (5/5)
"This is my 8th purchase an every one is amazing. The quality is just outstanding!"
— Susan S. (5/5)
"I love, love, love my new half zip merino top. It is exactly what I'd hoped it would be. Give I live in Ontario and I'm on the sporty side of things, I wear this top for outdoor activities and everyday activities. I even wear it to work under a vest. It is warm, yet breathable and the colour is perfect! I have been given many complements when wearing it. The fit is perfect too. I'm 5'7, 135 lb, with a small frame, but broad shoulders. I love my other Icebreaker tops, but this is now my favourite!"
— S (5/5)
"This item (and its matching pants) fits true to size. The fabric feels like a comfortable fleece, it is warm and the colour is so beautiful (light green frozen forms)! I highly recommend this one! There is also a matching beanie!"
— Dany (5/5)
"Love this long underwear set! I waited so long to get myself a nice pair and these are wonderful. True to size, not too thick or thin and look great too."
— Teenra (5/5)
"Really lovely Merino top. The ones that didn't fit were returned effortlessly with prompt repayment. Only glitch is the failure to get an email confirmation of the order made. This happened on 2 separate orders so it is either a web site fault or an unusual sales approach. I had to log in to my account to check it had gone through as expected."
— Him H. (5/5)
Find the size that fits you best based on people just like you.
Use the chart below to determine your size. If you’re between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit. If your measurements for chest and waist correspond to two different sizes, order the size indicated by your chest measurement for tops and your hip measurement for pants.
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| Bust | 30-32 | 32-34 | 34-37 | 37-40 | 40-42 | 42-45 |
| Arm length | 30 | 30.25 | 30.5 | 30.75-31 | 31-31.25 | 31.25-31.5 |
| Waist | 24-26 | 26-28 | 28-30 | 30-33 | 33-36 | 36-39 |
| Hips | 33-35.5 | 35.5-38 | 38-40 | 40-42.5 | 42.5-45 | 45-48.5 |
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| Bust | 76-82 | 82-88 | 88-94 | 94-100 | 100-107 | 107-116.5 |
| Arm length | 76-76.5 | 76.5-77 | 77-77.5 | 78-78.5 | 78.5-79 | 79-79.5 |
| Waist | 61-66 | 66-71 | 71-77 | 77-84 | 84-91 | 91-101 |
| Hips | 84-90 | 90-96 | 96-102 | 102-108 | 108-114 | 114-123 |
Our three different fits - slim, regular, and relaxed - ensure that when worn together, layers move and breathe like a single garment.

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