adidas take us closer to their new Battle Pack by releasing more images of their developer sketches to reveal an insight into the story of the World Cup boots. The next boot to in the spotlight is the adizero F50.

We've already seen developer skethces of the brand new Predator Instinct and Nitrocharge and this time it's all about the lightweight F50 silo, which will be worn by the likes of Robin van Persie, Diego Costa and Leo Messi in Brazil.

To bring fans closer to the development of the Battle Pack adidas have revealed a series of sketches. The F50 is designed on a black and white colourwaywith the patterns inspired by armadillo shell, crocodile skin and snake skin notoriously tough creatures, a theme that runs throughout the Battle Pack.

See our full adidas 'Battle Pack' reveal here. What do you think the adidas F50 design? Let us know what you think in the comments below.