For the most part the Duchess of Cambridge is used to wearing the most luxurious designer labels however she proved that she can be just as down to earth as the next pregnant women when she was spotted wearing a dress from the affordable online brand Asos.

Prince William's wife chose to wear a navy knee-length dress as she shopped for curtains and drapes to decorate her unborn child's nursery in Chelsea last week, according to the Daily Mail.

According to the Daily Mail, the dress was originally priced at $27 but has since rose to $29.70. The Duchess accessorized her outfit with a pair of Pied a Terre wedges which created a simple, stylish look.

[See photos of the Duchess of Cambridge in her $29 dress HERE]

This is the first time Kate Middleton has been spotted in a maternity outfit from the site. Previously the Duchess has worn dresses from Topshop or customized designer pieces by pricier labels including Emilia Wickstead, Jenny Packham and Tara Jarmon.

The Daily Mail boasts that the online retail shop features a maternity line that has "hundreds of items including on-trend dresses like Kate's, tops, skirts, slogan T-shirts, jeans and swimwear."

According to the clothing site the maternity dress by ASOS Maternity is made from a breathable, soft jersey fabric that features an "elasticated waist to stretch comfortably over your bump."

The dress is designed to fit throughout the individual's pregnancy and accommodate a women's new curves with each passing trimesters. The goal of the maternity line is to have females remain chic and trendy throughout their pregnancy.

The clothing is designed to flatter your baby bump, the collection features gorgeous maternity dresses, jeans, tops, pants, and more.

What do you think of Kate Middleton's affordable look? Leave us a comment below.