Michelle Obama kicked off the holiday season with a fabulously festive frock.

The first lady wore a navy-and-gold sleeveless sheath dress while hosting a holiday event at the White House for military families. Obama spoke about the Toys for Tots program, which distributes playthings to needy children, and later spent time helping to decorate cookies and make holiday cards with military children.

The shimmery sheath came with a matching three-quarter-length blazer, but Mrs. O was seen sans jacket for most of the day, showing off her famous arms in the sleeveless-style dress.

Meanwhile, check out our holiday gift guide of stylish presents for family and friends.

And click here for festive holiday frocks for under $100.