Smartwool Intraknit Thermal Merino Quarter-Zip Base Layer Top - Women's, REI Co-op

Smartwool Classic Thermal Merino Quarter-Zip Base Layer Top - Men's

Built for cool- to warm-weather activities, the Smartwool Merino Sport long-sleeve quarter-zip base layer top's merino wool and polyester blend offers

Merino Sport Long-Sleeve Quarter-Zip Top - Men's

Smartwool Intraknit Thermal Max Quarter-Zip Base Layer Top - Men's

Keep your temperature just right on cold days with the built-in ventilation of the women's Smartwool Intraknit Thermal Merino Colorblock Quarter-Zip

Intraknit Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's

Smartwool Classic Thermal Merino Quarter-Zip Base Layer Top - Women's

Smartwool Women's Intraknit Thermal Merino Wool Base Layer — Colorblock Quarter Zip (Slim Fit), Pewter Blue, Large at Women's Clothing store

Smartwool Intraknit Thermal Merino Crew Base Layer Top - Women's

Splash some color into your daily jog or ski run with this Smartwool Merino 250 Colorblock base layer quarter-zip top. It's pieced from pure merino

Merino 250 Colorblock Quarter-Zip Base Layer Top - Women's

Smartwool Base Layers

Smartwool Classic Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's

Smartwool Intraknit Thermal Merino Crew Base Layer Top - Women's

Smartwool Intraknit Thermal Merino Pattern Quarter-Zip Base Layer Top - Women's