The flag is tierced in fessazure, or and vert. i.e. it consists of two horizontal stripes in the colours green and blue. A thinner, yellow stripe separates the two. In the upper left corner of the flag is a fleur-de-lis.
The flag recalls how the new province was reclaimed from the IJsselmeer. The central yellow stripe, wavy then straight, symbolises the transformation of the sea into land. Its colour symbolises rapeseed, planted to stabilise the land. The blue represents water, the green the land.[3]