Recipe for a bestseller: make a fitted, slightly 60s inspired dress. Name it after a character from Mad Men. Style it with a backcombed, beehive hairdo. Belt it at the waist to create curves. Watch the orders fly in!

Oasis has definitely delivered the good when it comes to workwear with this great modern take on the classic shift dress. By adding a twisted stand-up collar that crosses over on a low-cut back, they give it a modern touch that harks back to the 60s without looking like a costume. You can wear the collar up or down, too, giving you two different looks from one piece. The colour is perfect for Autumn, a soft greyish purple that will look great on just about everyone, and the just-above-the-knee length suits most body types.

Grab the dress now for £65 at Oasis