Moving between seasons can be a tricky business. It's that time of year where you can walk to work in chilly winds and a heavy downpour but emerge at 5.30pm to bright sunshine. So when it comes to nailing your everyday dressing, you're going to want to get your layering game right. Enter Vila, the brand that's about to give your wardrobe the trans-seasonal boost it needs. Here are the top-five game-changers.