If you take your base layer game seriously (and you should), the Smartwool Intraknit Merino 250 Thermal 1/4 Zip Base Layer Top is the holographic
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Smartwool Classic Thermal 250 Merino Base Layer 1/4 Zip Top - Women's - Bushtukah
Smartwool Classic Thermal 250 Merino Base Layer 1/4 Zip Top - Women's - Bushtukah
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Smartwool Merino 250 Base Layer 1/4 Zip in Yellow for Men
Women's Intraknit Merino 250 Thermal 1/4 Zip Top