Lightweight, breathable and odor-resistant, icebreaker t-shirts will keep you comfortable whether you are out exploring the backcountry, hitting the gym or working from home. Our t-shirts are made with merino wool, making them soft, lightweight and breathable. Merino wool is also naturally odor-resistant, keeping you fresh all day long. Our collection of t-shirts are available in plain or graphics prints, and crew neck, scoop neck and v neck options. Whether you’re looking for something simple and stylish to wear around town, or the perfect t-shirt for your next backcountry adventure, we’ve got the merino wool t-shirts you need. Be sure to check out our trousers and shorts to complete your wardrobe.
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icebreaker weighting system. The larger the number the warmer the garment.
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The bigger the number, the warmer you'll be.

From summer heat to winter chill, there's a fabric weight to keep you in your comfort zone.

320 - 380 Heavyweight - Built to keep out the coldest conditions.

240 - 280 Midweight - Best suited for cold conditions.

200 - 230 Lightweight - Best suited for moderate to cool conditions.

150 - 180 Ultralight - Versatile all season performance.

120 - 135 Featherweight - Best for warm to hot conditions.