UPDATE: We received an email from the designers of Jolibe, who say the skirt is from their spring 2011 collection. They say the skirt will be available at Ikram in Chicago and Susan of Burlingame in San Francisco.
PREVIOUSLY: No greens, reds, plaids or knits were involved in First Lady Michelle Obama's Christmas day ensemble. She stepped out to the Anderson Hall at the Marine Corps base in Kaneohe, Hawaii in a white tank top, printed skirt and metallic flats.
Take a look: