Vaporace - Character Concepts

This is from my personal project, Vaporace~ The bones of the story consist of this near-future world dominated by clothing brands and street racing. The best of the best compete in races all over the world and most are sponsored by popular clothing brands. The deal to be sponsored is to augment one of your body parts, and the more parts that are augmented, the more money you receive. It's kinda messed up but I thought it would be interesting. These boys are some concepts in terms of fashion.