New for Women
Shop NowPoor quality
"Front of the t-shirt worn off very quickly . It looks like wool is dissipated only synthetics left. No idea how, it is not close to scratchy areas like belt, most likely poor quality."
Free standard shipping for orders above £40
Free returns
349,00 zł
Enter your email to receive a notification when this product becomes available.
349,00 zł
Soft, comfortable and versatile for a wide variety of active pursuits, the Merino 125 Cool-Lite™ Sphere III Short Sleeve Tee features our lightweight Cool-Lite™ merino jersey.
Good for:
60% TENCEL™ Lyocell, 40% merino wool, exclusive of decoration
Machine wash cold, gentle cycle. Wash with like colors. Do not use softener. Do not bleach. Do not tumble dry. Line dry in shade. Cool iron. Do not dry clean.
Model measurements:
Height: 186cm / 6'1". Waist: 82cm / 32". Alex is wearing size M.
Key product measurements:
Back High Point Shoulder to Hem: 72cm (Based on size M)
Regular Fit
Neither snug nor loose - garments that are worn solo or over other layers.
Standard delivery: free for all order over £ 40. Delivery in 5-7 days, from Monday to Saturday, during working hours.
Please visit our Delivery page and find out more about the ways in which you can receive our products.
You have 30 days from delivery to follow our quick and easy return procedure.
Overall rating: 4.597701 / 5 from 87 reviews.
The 125 Sphere T-shirt is praised for its high-quality material, excellent base layer, and comfortable fit. Customers also appreciate its great feel and highly praised color, though opinions on overall quality vary.
Review topics: ["fit","size","weight","problem","quality","design","feel","colour","material","looks","fabric","shirt","wear","comfort","collar","base layer","buy","smell","breathability","blend","tee","cool","merino"].
"Front of the t-shirt worn off very quickly . It looks like wool is dissipated only synthetics left. No idea how, it is not close to scratchy areas like belt, most likely poor quality."
— VT (2/5)
"I like the color and fabric the medium fitting is smaller than the normal mediums I get in the other icebreaker shirts"
— rw (4/5)
"Heerlijk zacht, voelt cool aan en is zeer ademend. Hierdoor perfect voor sport of warme dagen."
— Stefan (5/5)
"This fit slightly smaller compared to other styles I own in the same size, so I’m not sure if it’s just a one-off. Aside from the slimmer cut, I like the fabric and colour options."
— Gil H. (5/5)
"I love this shirt! Feels great on skin, looks great, breathes well and keeps me comfortable over a wide range of temperatures. Versatile. I hope I get a very long life out of this shirt! That's the plan"
— Joel O. (5/5)
"Bought this for my partner who heard my positive raves of the merino tee I had and wanted to try one as well. He loved it. It folded into a small bundle that left plenty of room for his other clothes on our travel to Japan. He was so impressed with how comfortable it was, even in the unexpected heat, that more merino tees are on his Christmas list. Nice to have something to buy for a guy who always says “no, I don’t need anything “."
— Vera S. (5/5)
"Return buyer, good quality ,good fit and very comfortable when running long distances trails"
— JING Y. (5/5)
"Love the color, fit, and lightweight yet durable material. Have worn it intermittently one season so far."
— Amanda A. (5/5)
"Love the fit. The dye discolored on the greenish shirt after a few washes however. No problems with the black or grey yet"
— Robert Z. (5/5)
"Natural wool material and a great fit."
— Derek C. (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 | XXXL | |
|---|---|---|---|---|---|---|---|
| Chest | 33-35 | 35-37 | 37-40 | 40-43.5 | 43.5-46.5 | 46.5-49.5 | 49.5-53 |
| Arm length | 33.5 | 33.8 | 34 | 34.3 | 34.5 | 34.8 | 35.3 |
| XS | S | M | L | XL | XXL | XXXL | |
|---|---|---|---|---|---|---|---|
| Chest | 84-89 | 89-94 | 94-102 | 102-110 | 110-118 | 118-126 | 126-134 |
| Arm length | 85-85.75 | 85.75-86 | 86-86.5 | 86.5-87 | 87-87.75 | 87.75-88.75 | 88.75-89.75 |
Our three different fits - slim, regular, and relaxed - ensure that when worn together, layers move and breathe like a single garment.




Your first order.
Subscribe to the icebreaker newsletter and be the first to hear about new products, exclusive offers, and more reasons to move to natural.
Check your inbox for an email from us containing your 10% off promotional code.
Success! 🎉 You've successfully signed up for our email list. Stay tuned for exclusive offers, updates, and more!
You are already set to receive the latest offers and news.