This seems to be the new Paraguay World Cup 2010 Home shirt made by adidas. The new Paraguay 10/12 kits will be available through the FSC Shop.
In 1910, the Asociación Paraguaya de Fútbol decided to officially create the national team and selected the striped red and white jerseys that until this date remain as the official colours. These colours are taken from the Paraguayan flag.
Thanks to Curswine.