Classic Thermal Merino Base Layer 1/4 Zip Color:Chalk Violet heather (N81) Removable PU insole with arch

Removable PU insole with arch support for long-lasting comfort

Neoprene sleeve provides warmth and compression while figure 8 elastic wrap allows adjustable support and stabilization

Generations of running

flat heel cradle adding stability and motion control to limit excess stress on feet

Designed in Michigan by The Mitten State

Classic Thermal Merino Base Layer 1/4 Zip Color:Chalk Violet heather (N81) Removable PU insole with archSmartwool updated the fit of their Women's Classic Thermal Merino Base Layer 1 4 Zip to improve functionality while also enhancing aesthetics. As one of their heaviest base layer tops and one of their best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help prevent chafing as well as keep you comfortable and temperature regulated as you enjoy high intensity