From the writeup:

Maternity clothing can be expensive, especially considering they are only suitable for short term use, Sassabies allow you to get extra wear from your current wardrobe.

These are such a great product, you simply slip one over your top and it is an instant fashion piece. They are stretchy, so can be used throughout your pregnancy and are comfortable to wear. As your tops get shorter due to your expanding belly these Sashays will keep you covered.