INSTANT LIFETIME guarantee WITH THIS PRODUCT! Thin weight socklet for a multitude of activities, where minimal insulation & maximum breathability are required. 100% waterproof, windproof & breathable – Constructed with our patented Stretchdry technology Our lightest waterproof sock, ideal for warm wet days Extra soft outer whilst maintaining durability through polypropylene fabric Moisture control & comfort – Merino Wool lining Added support & comfortable fit – Elasticated ankle & instep Secure comfortable fit – Y-gore heel construction Prevent rubbing – Hand linked toe closure created flat seam 40d-waterproof