Marks and Spencer is known for its great cashmere at an affordable price, and I personally love its collection in collaboration with Rosie Huntington-Whiteley. This Rosie For Authograph Pure Cashmere Dressing Gown (£199) is a gorgeous luxury piece that I've had my eye on for quite some time, but if loungewear isn't your cup of tea, have a look at their Polo Neck Jumper (£89), socks (£30), and Herringbone Scarf (£49.50) — they're just as soft!