If you're hoping to survive the winter with your style still in tact, you're going to need to get serious about your layers. Simple jersey is no good to you now, you're going to need some thermals. 

Thanks to Marks & Spencer, whose Heatgen Spotted Mesh thermal top is as nice as anything you might find in any jumper section, you can incorporate thermals into your wardrobe without looking at all apres-ski.   

At the London premiere of Thor: The Dark World recently, Natalie Portman wasn't letting the late-autumn chill get to her, pairing a cosy-looking top with her incredible Dior skirt, proof that it's seriously cool to throw a thermal on with even your most fashioney items. 

Wear long-sleeved thermal tops with a leather pencil skirt, jeans, under a plaid shirt - with anything. You could even wear this M&S one to all manner of winter parties (wouldn't it look nice with tux trousers?), keeping you smugly warm among those in thin dresses when you sneak out for a ciggie.  

Get one from M&S now for £19.50. Wear it with everything.