You can bid for this one-of-a-kind onesie playsuit, exclusively designed for Wellington Free Ambulance by local designer and proud Wellingtonian Sophie Voon.

Made from beautiful Amy Butler cotton fabric called “Spring Beauty”, the colours mimic the yellow and green of Wellington Free Ambulance with playful pink highlights.

The sizing is an easy fit for a size 8-12 with a drawstring waist, so it will work for anyone within the following measurement bracket: Bust = 84cm-95cm Waist =65-90cm Hips =90-110 Length from shoulder to hem is 87cm

If you win this auction not only will you have a special one-off designer piece, you will also be doing something special for Wellington Free Ambulance and your community. Bid now.

The onesie playsuit is currently in the window at Voon, 142 Willis Street, pop in to have a look or try it on.

Pull out your onesie, or just your wallet, and celebrate Wellington Free's Onesie Day 11 September. Text Ones to 3181 to donate $3, or donate online http://www.wfa.org.nz/donate.

Nice one!