Meet the most versatile running shoe: the Relay Trainer. It's designed for everything from short runs, long runs, easy runs, hard runs, jogs, walks, and your favorite gym workouts - it's ready to do it all.What's the secret? We've created a cushioned yet stable midsole that combines a firmer outer rim made of Sugarcane-based foam with a softer Algae-based foam center to give you the best of both worlds. Cushion for when you're going the distance and stability for when you're making moves in the gym.Limited Edition Color: Key Lime (white with neon yellow)Currently Sold Out on their site.The Relay Trainer features a supportive fit with a breathable, non-stretch mesh upper and fits true to size.We recommend going with your usual size.Bonus: our shoes are unisex, with men’s and women’s styles offering the same fit. This means sizes can be converted to suit a wider range of people. Men’s sizes are 1 full US size smaller than women’s. For example, if you are a women’s US 10, you can also purchase a men’s US 9 for a perfect fit.