Kettler is known to be the best trikes on the market with their safety features like limited turn front wheels to prevent tipping when making sharp turns. To keep them even more ahead of the game, they are introducing a Go-Green trike with mostly recycled materials for their parts. Another major plus, this trike will fold up for easy transport to the park. What else do you need? Oh right, a bucket to hold all the treasures your tots find along the way. Conveniently placed in the back and even has a hinged dumping mechanism. At Amazon for $79.