100% merino wool. Ribbed fabric. One size fits all. Arpenteur’s Vicko Beanie is a straight-up, no-nonsense fisherman’s beanie of the highest order. Concocted from some extra-toasty merino wool, this is just the thing for trawling the high seas and other nautical-based hijinks, as well as, you know, cutting about town and whatnot.