It's hard to imagine a colder week and, while getting dressed over your PJs feels like a valid option right now, Alexa Chung is here with a much chicer alternative. Layered over a classic cable knit is the coolest and cosiest aviator jacket EVER. Working so well with her oversized shearling, Alexa keeps the look sleek with black, skinny jeans and kinda witchy (very SS16) ankle boots. Just don't forget your hat, scarf or gloves!