We've gotten to that time of year when all we want to do is batten down the hatches and hibernate until the first signs of spring. We might not be able to hide under our covers for the next three months (sorry), however, a good coat can go a little way to make up for this fact. If you're currently on the lookout for an affordable coat to shield against the arctic wind, then head over Topshop, because right now, this high-street fave is killing it in the outwear stakes.