Stella Mccartney is launching a new childrenswear collection.

The capsule range will be based on Little Miss Stella - a character created for the designer by author and illustrator Adam Hargreaves in 2006 for a fashion show invitation - and accompanied by a book.

The 32-page book will tell the story of what happened when Little Miss Stella meets Little Miss Nobody, who has a problem bumping into people because no one notices her. Little Miss Stella solves all her new friend's problems by designing her a bespoke suit, magically transforming into ''somebody''.

The Little Miss Collection - aimed at girls and babies from newborn to 14 years old - will comprise seven pieces, including a T-shirt, jumper, pyjamas, bag and a baby's all-in-one suit and the garments come with a set of fabric pens that can be used to draw on the items.

The collection will launch at the end of August at Stella McCartney stores and online.

Prices will start from £27.

Stella recently revealed she wants every Team GB athlete to feel ''special'' in their Olympic kit.

The Fashion designer created the Adidas outfits for the British athletes to wear during the London 2012 Games and as well as being comfortable, she wants them all to feel confident in them.

She said: ''Ultimately the athletes know they've had someone looking closely at every single moment of the design and I hope that lifts their spirits and makes them feel special.''