The Lotto Viper Ultra IV Speed tennis shoe was developed for mid to advanced level players looking for the right equilibrium between stability, flexibility and lightweight. A Nylon upper with K-Polyurethane mesh offers superior stability on multi-directional moves and durability.
Herringbone pattern sole guarantees stability on hard courts. Replacement laces included in the box.
Nylon upper with K-Polyurethane mesh
Sole in PU foam for cushioning and breathability
Enerturn heel cushioning absorbs the forces of impact and redistributes the power throughout the shoe, at the speed of energy.
Outsole in high-quality rubber for durability and super traction
Herringbone pattern sole for super grip on hard courts
Shock absorption system in multiple-density elastic material which disperses the negative forces of impact and returns the accumulated energy to the player.
Heel Control is a set of technical features used in the construction of the upper to ensure correct heel support and control.
Puntoflex is a special technical device which allows the foot to flex correctly and gives an excellent elastic return.
System of special technical solutions for making upper. It improves foot stability and protection, and extends the shoe's life.
Special mix of rubber with high abrasion resistance. The rubber in the forefoot in the running line gives enhanced performance when on the go.