British fashion designer Adrien Sauvage, in collaboration with Microsoft, has designed a pair of trousers which can charge your mobile phone.

Sauvage has designed the special line of trousers by integrating Nokia DC-50 wireless charging plates for Lumia smartphones into the pockets, which will charge the phone with a electromagnetic induction. The plate can be charged through a Micro USB.

Microsoft Mobile (UK and Ireland) marketing director Adam Johnson said: "We have a proud history of working within fashion, having previously collaborated with Bruce Weber and David Bailey, as well as recent partnerships at New York and London Fashion Week.

"Continuing this theme, we are excited to work alongside a talented designer such as A. Sauvage. As well as having the vision to co-create these amazing wireless charging trousers, his style complements the cutting-edge design of the new Lumia 930 smartphone perfectly."

A major challenge was to design the trousers to be comfortable for the wearer, and not to warm up by the heat produced from the charger.

Sauvage started working with Microsoft on this project six months back to create this trouser line, and the trousers will be on sale for three months for $340.