Adidas and fashion designer Stella McCartney have revealed a new version of the Ultra Boost trainer that features an upper made from plastic recovered from the sea.

The Parley Ultra Boost X running shoes, unveiled today, feature Primeknit uppers made from Parley Ocean Plastic ? a manufacturing process which replaces synthetic fibres with yarns made from recycled waste plastic from the sea.
The all-white trainers are shaped to reflect the form of the foot, with a sock-like fit achieved through the Primeknit material.
The midsole is made from the brand's Boost material, a foamy cushioning more commonly found in car instrument panels, while the laces reach across the entire width of the shoe ? an innovation that Adidas claims supports "quick-fire movements".
McCartney, who is known for her ethical approach to fashion design, described sustainability as being "fundamental" to what she does.
"I strongly believe in making clothing that is ethically created and built to last, and this is an ideology I channel into every single piece I design," she said.
"For me, preserving and respecting the planet is fundamental to what I do and I always try to make an effort to consider that in my designs."

The designer, who is creative director at Adidas, was described by Cyrill Gutsch, founder of Parley for the Oceans, as a pioneer and a role model.
"Stella McCartney is a pioneer, a rebel really," said Gutsch. "Her vision to create fas...