Lucy Mecklenburgh's Opening Ceremony Bright Cobalt Blue Textured Chunky Knit & Ribbed Panel Long Sleeve Oversized Asymmetric Wool Jumper With Zip Detail To Front

You can view Lucy in her cosy bright blue jumper here 

You can buy Lucy's jumper here from the Selfridges website or here from the Shopbop website

Item image via Selfridges.