It's winter in London right now, which means all the hot and heavy catwalk heroes can't be in our wardrobes just yet. But Fashion week isn't just about clothes, y'know. At London Collections: Men this week, we also kept a beady eye on the models' hair situations. From the melée of gel, hairspray and wax swirling around backstage, we extracted some top tips for next-season's follicular trends – check them out below.