$129, mango.com

Winter whites are big news this season, and this blazer is right on point. The fit is perfection: It's double-breasted well-cut, has nice heft, and the gold buttons give it a Balmain-chic touch. I 'd wear it with...

1. J. Crew sweater, $39, jcrew.com

2. Mango blazer, $129, mango.com

3. Miss Selfridge studded suede clutch*, $61, missselfridge.com

4. Thakoon heels, $925 shopbop.com

5. Mulberry corduroy pants, $380, netaporter.com

* I could not stop fondling this bag at Miss Selfridge in Selfridges in London. I love the portfolio-worthy size and Valentino-ish aura! Pics to come from London soon!