For quite a long time Adidas was at the roots of skateboarding, but never really fully involved. Every skater has tried out a pair of white and black shelltoes at least once in their lifetime. I remember Pepe Martinez (rip) made them look pretty good in his part in Fine Artists Vol. 1.
Over the past few years they started getting more and more into the scene and Adidas just released a new crop of shoes including the Joe Castrucci version of the Campus. I love everything that Joe does at Habitat, bar none. Check out their new line. The vulcanized Campus looks pretty nice too.