With every season comes a new denim to get to grips with. In just a few short years, we’ve had to contend with spray-on skinny, wet-look leatherette, jeggings, boyfriend, drop-crotch, neon and leopard print. We’ve worn them high, uncomfortably low, rolled up to the ankle and ripped to shreds. But for even the most hardened fashion buffs this may take a little getting used to: dungarees are back on the scene.