INSTANT LIFETIME guarantee WITH THIS PRODUCT! Our best selling Mid weight. mid length sock, now with a soft touch outer fabric for luxurious feel & superb performance. 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 Totally waterproof, breathable & windproof Mid weight sock offering the perfect balance of warmth & breathability Merino wool lining for moisture control & comfort Elasticated ankle & insteps offer support & a comfortable fit