A performance, thin weight mid length waterproof sock perfect for a multitude of activities and conditions where minimal insulation & maximum breathability are required. 100% waterproof, windproof & breathable – Constructed with our patented Stretchdry technology Moisture control & comfort – Merino Wool lining Added insulation & versatility – Nylon/ Acrylic blended roll over top cuff Extra support & comfortable fit – Elasticated ankle & instep Secure comfortable fit – Y-gore heel construction Prevent rubbing – Hand linked toe closure created flat seam