The insole of the Nike Mercurial Vapor 5 features covered lacing which prevents the laces from making contact with the ball. This ultimately results in soccer players being able to strike the soccer ball more cleanly. The insole of the Nike Mercurial Vapor 5 also has a contoured sockliner with EVA inserts for added comfort.The outsole of the Nike Mercurial Vapor 5 features direct-injected heel studs which provides for weight reduction of the soccer cleat. The total Nike Mercurial Vapor 5 weight is 8.4 oz which makes it the lightest soccer cleat on the market.Nike Mercurial Vapor V reviews have been extremely positive from strikers because of the fact that this newest cleat from Nike is so light. Nike Football Boots The lightness of this Nike Soccer cleat allows players to move their feet quickly and to be more agile off the ball. -Light Direct injected heel studs reduce weight on the outsole while the Vapor forefoot plate comes with a multidirectional traction pattern to make heads spin. Let the fire burn in the Nike Mercurial Vapor V FG. For use on firm natural surfaces. Wt. 8.4 oz. 185 grams.