David Mach is renowned for his large-scale sculptures made of everyday materials. This work uses glass bottles filled with coloured water to create the shape of a woman lying on her back with her legs spread. It also echoes the shape of the Scottish flag. Mach made his first bottle piece in 1979. As a student he had worked in a bottling plant during his summer holidays and, impressed by the large production plant, he wanted to create works which were on the same imposing scale. This sculpture was commissioned by the National Galleries of Scotland.