Mary-Kate Olsen: StyleMint Adds Cashmere!

Mary-Kate Olsen leaves an SUV with a cup of coffee on Saturday (December 17) in New York City.

The 25-year-old fashionista recently teamed up with her business partner and twin sister, Ashley, in a new video for their latest clothing brand, StyleMint.

PHOTOS: Check out the latest pics of the Olsen Twins

Check out M-K and Ashley‘s December T Moment video below!

StyleMint also recently added cashmere sweaters to their lineup of tops – check them out if you’re still looking for gifts for the holiday season, but act fast!