WWD reported that Roy's separate designer footwear line will include flats starting at $195 (R1 480) and heels ranging from $225 (R1 700) to $325 (R2 470).

According to the creator the collection is "classic with a twist", and there are nods to Blahnik via textured looks and mixed materials such as wool and suede.

Roy, who collaborated with the 69-year-old Spanish creator for footwear at her past New York Fashion Week shows, also combines neons and other bold tones with motifs including animal print, polka dots and gingham.

"Designer shoes are one of the categories I've wanted to do but I was unwilling to do it until I felt I could really do it right," explained the creator, who sells her eponymous fashion line at Rachelroy.com and her Rachel Rachel Roy diffusion apparel and accessories line at US department store Macy's.

Other Blahnik collaborators to have recently announced footwear expansion include US creator Isaac Mizrahi.

The 50-year-old, who began collaborating with Blahnik in 1988, announced last October that as of Fall 2012 he will launch an affordable line of shoes, jewels, bags and small leather goods, with prices ranging from $38 (R289) to $348 (R2 650).