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Zpacks Merino Wool T-Shirt

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$25.17 $39.95 In stock

2026 Update - Our Wool T-shirt has been updated to the Radiant Wool T-Shirt! This listing is for the original version, available in remaining sizes while supplies last.

Our ultralight Trail Cool Merino Wool T-Shirt is comfortable and super soft to the touch.  Merino Wool base layers are ideal for hiking, backpacking, trail running and other outdoor adventures. Wool's natural ability to control moisture and odor help to keep you comfortable every step of the trail.

Check out the rest of our Merino Collection.

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When it ships

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

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

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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 (4.8 / 5 · 5 reviews)

Christopher O. ★★★★★

I was skeptical a wool shirt could feel this light, but it’s genuinely ultralight and breathes better than my old cotton tees on a sweaty hike. The fabric doesn’t cling to my skin when I stop for a break, which is exactly what I wanted for multi-day trips. Wish I’d bought two before they switched to

Grace ★★★★★

The fabric has that distinct technical feel, but it breathes way better than my other synthetic shirts. I grabbed it for summer day hikes and even after a long sweaty afternoon, it doesn’t cling or smell like the old cotton ones.

Timothy ★★★★★

This is my third one after the first two got ruined by snags, but the ultralight fabric breathes so well on hot trails that I keep coming back. The trim fit through the shoulders feels great under a pack, and it dries out fast during lunch breaks.