Norvan 4 Nivalis Black/Arctic Silk Size:9US The signature three-layer MA-1–inspired construction

The signature three-layer MA-1–inspired construction remains lightweight

Front button closure with zip fly

double-backed fleece with a thicker core thread

Water buffalo horn buttons

Mesh back with snap closure

Norvan 4 Nivalis Black/Arctic Silk Size:9US The signature three-layer MA-1–inspired constructionDesigned for winter trail running, the Norvan 4 Nivalis keeps your feet dry and protected with a GORE TEX upper and over ankle gaiter. Winter optimized outsole lugs provide grip on snow and mud, while carbide spikes or microspikes can be added for icy conditions. Built for a Precision Fit, it offers a snug, supportive feel across the foot, letting you tackle harsh winter terrain without compromise. *Details* X000009835 Abrasion resistant PFAS free