Stella McCartney designs t-shirts in collaboration with Meat Free Monday

The 'Meat Free Monday' association was founded by Paul, Mary and Stella McCartney to encourage people to refrain from consuming meat for at least one day a week. It has now launched two new t-shirts in collaboration with Stella McCartney.

The 'Neon' t-shirt in organic cotton features a white-on-black print with a heart, the association's symbol, and the words 'Meat Free Monday'. The 'Postcard' t-shirt is fully sustainable, and is manufactured using a special recycled polyester and organic cotton.

Printed on the t-shirt is a collage of pictures taken by Linda, Stella's mother, between the end of the '60s and the early '90s. Also the 'I love you' inscription at the centre of the t-shirt is taken from one of Linda's pictures.

"I'm very happy about this new project," said Sir Paul McCartney, "the 'Neon' and 'Postcard' t-shirts are ways of giving more visibility to our association. Both of them have been designed by my daughter Stella exclusively for Meat Free Monday."