Men's 300 MerinoFine™ Polar Long Sleeve Half Zip

Men's 300 MerinoFine™ Polar Long Sleeve Half Zip - View 3

Men's 300 MerinoFine™ Polar Long Sleeve Half Zip - View 4

Men's 300 MerinoFine™ Polar Long Sleeve Half Zip - View 5

Men's 300 MerinoFine™ Polar Long Sleeve Half Zip - View 6

$174.2 ~~$260~~ In stock

A heavyweight merino wool base layer top designed for the coldest of days, the 300 MerinoFine™ Polar Long Sleeve Half Zip features premium 15.5-micron icebreaker merino wool that offers refined softness while efficiently managing moisture, drying quickly, providing natural odour resistance, and delivering breathable comfort.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Lucy ★★★★★ Oct 20, 2026

I wore this on a freezing November hike and the half zip made venting easy when I started sweating. The heavyweight merino kept me warm without any itchiness at all.

Isabella ★★★★★ Oct 18, 2026

This half zip is a lifesaver on frigid mornings; the heavyweight merino blocks wind way better than my old fleece. The fabric feels dense yet soft against skin, and I love the high collar for extra warmth.

Natalie ★★★★★ Oct 17, 2026

The 15.5-micron wool is noticeably softer against my skin than other heavy base layers I've tried. I wore it ice fishing last weekend and stayed warm without any itchiness, even after a full day out.