Nike has unveiled its 2010 series of national football team kits ahead of this year's World Cup in South Africa.

Revealing the new kits at an event in London, the sportswear designer said each outfit would feature recycled polyester produced from up to eight recycled plastic bottles.

"We are equipping athletes with newly-designed uniforms that not only look great and deliver performance benefits, but are also made with recycled materials," said Nike Brand president Charlie Denson.

Suppliers to Nike sourced discarded plastic bottles from Japanese and Taiwanese landfill sites, before melting them down to produce new yarn for conversion into jersey fabric.

Nike claims the process reduces energy consumption by up to 30% compared to manufacturing virgin polyester and says it prevented nearly 13m plastic bottles from going into landfill sites.

Specifically, each of the kits features Nike Dri-Fit fabric, some 15% lighter than previous versions and which draws sweat to the outside of the garment where it evaporates. Air flow has also been increased 7%, while ventilation zones consists of up to 200 tiny laser-cut holes.

The Nike shorts also have additional ventilation zones below the waistband and near the base of the spine.

Away national team kits are now available, while home versions will appear from 1 May.

Nike will supply national team kits in South Africa to the squads of The Netherlands, Portugal, the US, South Korea, Australia, New Zealand, Serbia and Slovenia.