It is a 1940s style jersey dress, very retro and feminine, with a wide skirt (not full circle but a third circle) that is over-knee length.
The neckline is beautifully framed with a satin bow and straps, all edged with chiffon that is been hand pleated.
It is for sale from THE BLACK WARDROBE website (look for the picture, on the left side of this blog for a link) and you can also find it at the Rose and Anchor boutique (my stockist) in Liverpool.
It is £69.00
http://www.theblackwardrobe.com/product/1940s-style-dress-with-front-bow-20