Ionia Merino Wool Shirt LS Men's

Ionia Merino Wool Shirt LS Men's - View 3

$90 ~~$120~~ In stock

This Ionia Merino Wool long sleeve shirt from Arc'teryx is one of our favorite lightweight merino wool blend baselayers. Made with a blend of merino wool and nylon for the perfect combination of soft comfort, breathability, durabililty, and odor resistance.

Details

Merino/Nylon Core Spun Jersey Fabric. 87% Wool, 13% Nylon
Merino Fibers Wrapped around a Nylon Core for Added Durability
Soft Hand
Crew Neck
Long Sleeve
Articulated Patterning
Fitted
Arc'teryx Bird Logo
Breathable
Lightweight
Air Permeable
Anti-Odor Properties
Wool Certified to the Responsible Wool Standard (RWS)
6.7 oz (190 g)

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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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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 (4.8 / 5 · 5 reviews)

Robert P. ★★★★★ Oct 22, 2026

The merino-nylon blend seems just right, it’s soft against the skin but feels like it’ll hold up better than my last pure wool layer. I bought it for skiing and the fit is snug without being clingy, which I appreciate on cold mornings.

Jason ★★★★★ Oct 21, 2026

I’ve worn this as a mid-layer on chilly hikes and the lightweight merino really manages sweat without feeling clammy. The stretch from the nylon gives it just enough give for layering under a shell.

Zoe ★★★★★ Oct 20, 2026

The nylon blend really helps this shirt keep its shape after multiple wears, unlike pure merino that gets baggy. It's become my go-to for cool morning runs when I need something that breathes but doesn't feel clingy.