I/O Bio Merino Merino Long Sleeve Crew

sku# 39755
Model Info
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Product Info

I/O Bio Merino Long Sleeve Crew: The season is upon us which means it’s time to start thinking about how to protect ourselves from the bitter sweet cold. If the I/O Bio Merino Long Sleeve Crew is not at the top of your must-have list, you need to re-evaluate your priorities. With its versatile construction and fit the I/O Bio Merino Long Sleeve Crew can regulate and dominate as a base-layer as a stand-alone, basic crew.

Product Details


96% I/O Merino

4% elastane

Special Features

Next-to-skin fit

Flat seams

Raglan sleeves

Underarm gusset

Slightly longer than regular tee

layer or stand-alone


  • Weight Class: Lightweight
  • Material: Wool