Nitro Foam Advanced technology providing excellent response and cushioning while keeping weight to a minimum. Nitro Foam provides a better combination of cushioning and speed than any previous Puma foam.Profoam Lite Extremely lightweight EVA technology that provides instant cushioning and maximum comfort. PumaGrip Durable rubber that maximizes multi-directional traction for advanced agility and accelerationModel: Electrify Nitro Colour: Blue Type: running, training Fastening: lacing Sole height: 3 cm Material Type: Textile Material: textile, synthetics