Soft interlock knit. - Naturally elastic.
Stanfield's Men's Thermal Pure Merino Wool Long Sleeve Shirt Baselayer
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MERIWOOL Mens Base Layer - 100% Merino Wool Midweight Long Sleeve Thermal Shirt Charcoal Gray at Men's Clothing store
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DANISH ENDURANCE Merino Wool Long Sleeve Base Layer Shirt for Men, Thermal Shirt Black at Men's Clothing store
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MERIWOOL Mens Base Layer - 100% Merino Wool Midweight Long Sleeve Thermal Shirt
Merino 200 Oasis Long Sleeve V Neck Thermal Top - Icebreaker (US)