With an ultra-thin PU synthetic upper that moulds to your foot, the Concave Volt 1.0 Men's football boots offer a reliable and controlled touch on the ball.For devastating power and pinpoint accuracy, the Volt’s Concave Component sits on the upper part of the laces to improve your striking ability, providing a larger sweet spot to achieve perfect contact on the ball.The Volt 1.0 features F3 (Football Form Fit), which is a unique dual-lacing system technology that offers a supportive, custom fit to all foot shapes without contorting their natural form.For comfort and efficient energy return, the inside of the Volt 1.0 includes a textile and PU synthetic lining, while removable shock-absorbing sock liners provide added cushioning.The Volt 1.0 includes a TPU injection outsole, which incorporates bladed studs to provide explosive traction on firm natural surfaces.