Vapor 13 vs X19.1 - speed boot comparison. In today's episode of the Boot Nerds Podcast Episode 39, JayMike from Unisport and Josh from SR4U will discuss which of the Nike Mercurial Vapor 13 football boots and the adidas X19.1 football boots is the best to give you guys an idea about which of the two speed football boots you should choose. The Nike Mercurial Vapor 13 football boots are made with Flyknit and an anatomical outsole to give you an aggressive grip and very sharp, crisp sensation on the ball, whereas the adidas X19.1 football boots are slightly wider and made with a mesh and silicone upper to give you a comfortable pair of speed boots that will feel well balanced. No matter which of the Nike Mercurial Vapor 13 or adidas X19.1 speed boots you choose, you're in for a treat - as Josh and JayMike will also tell you.