Heidi Klum was spotted taking her kids to karate class in Brentwood, CA on Saturday.

The ‘Project Runway’ host, who was recently in Milan for Fashion Week, wore a Balenciaga Pre-Fall 2011 sweater.

Her black wool maille knit long-sleeve crewneck sweater with a woven German shepherd intarsia graphic was paired with J Brand ’912′ low-rise pencil leg jeans and slouchy brown Casadei boots.

I never thought I’d ever see Heidi wearing Balenciaga, but this knit sweater is a very stylish sidewalk look.

Mary-Kate Olsen has also been spotted wearing this sweater.

Credit: Style.com & Fame Pictures