If you've ever received an invitation with the dress code 'Formal', you'll be familiar with the smorgasbord of sartorial queries that this seemingly straight-forward instruction throws up.
Does my dress have to be full length? Are bare shoulders acceptable? What about a deep V-neck? Or a bare back? Are thigh splits tacky yet?! Is there such thing as *too* bright?
What to wear to a wedding according to each of the (endless!) different dress codes
Often regarded as one of the fashion world's most panic-inducing instructions, it in fact welcomes a surprisingly broad array of options.
Other than the hemline (mid-to-full-length does tend to work best), you can wear near enough any colour, any cut, and any shape... and there's very little chance you'll ever manage to wear too many sequins.
Feeling brave? Whether you're heading to prom, a black tie dinner or even a high-end ball, take a look through our shoppable edit of the very best to snap up and swirl around in...