INSTANT LIFETIME guarantee WITH THIS PRODUCT! Thin weight sock for a multitude of activities, where minimal insulation & maximum breathability are required. Totally waterproof, breathable & windproof Constructed with our proprietary Stretchdry waterproof, breathable & windproof technology Our lightest waterproof sock, ideal for warm, wet days Our new soft touch polypropylene outer fabric gives you a softer shell with the same hard wearing properties you've come to expect from us Merino wool lining for moisture control & comfort Elasticated ankle & insteps offer support & a comfortable fit