The New Balance FuelCell SuperComp Trainer v4 is a true all-rounder. The shoe is great for your daily runs, but its fast character also makes it ideal for your tempo and interval training. The shoe for when you pick up the pace! Midsole The FuelCell foam in this shoe provides a propulsive feeling that helps you move forward. The foam in the midsole consisting of TPU and Bio-EVA gives a lively and responsive feeling during your run. High energy return will be experienced with every step you take, the foam boosts you forward and is a real performance foam. The carbon plate has a unique geometry that is also called Energy Arc technology. Between the foam is a carbon plate that is deformed in two directions. This is an even thinner carbon plate to save weight. A large recess can be seen in the bottom layer, which allows the plate to bounce in and out. This is the optimal combination of soft cushioning and maximum energy return. Upper A mesh upper makes the FuelCell SuperComp Trainer v4 highly breathable and comfortable to wear while running. Outsole The shoe has a rubber outsole and offers good grip and traction while running.