We know you've got a dilemma. The weather forecast is glorious, but last year your tent was an absolute washout. If you're going to a festival this summer, you'll need to cover all your options. Wear your wellies but tuck a pair of flip flops in your bag just in case you're lucky enough to see the sun. Smarten things up with a designer finish, or keep in casual in classic sneakers, just make sure you've got a back up.