The NIVIA Carbonite 5.0 shoes are comfortable and durable. The PVC synthetic leather upper is light in weight. Inter polyester cloth reinforcement offers increased stability and support in the lateral and medial movements. COLLAR-Knitted polyester fabric collar rib with spandex for excellent fit and comfort. The PVC synthetic leather upper with a knitted polyester fabric collar rib will encase each foot in durable comfort. It creates a better, healthier environment for your feet to thrive in. The construction duces an irritation-free fit, reducing bulk, layers, and weight lacing system works to deliver an anatomically correct fit. Two layers of high-density foam line the collar and mould to the athlete's foot to create a personalised heel fit, adding soft support and custom comfort. standard adjustable nylon lace. Die Cut soft cushion sockliner exists as an extra layer of plush, step-in comfort. Lightweight insoles vide more comfort and grip. The TPU sole vides excellent stability and traction.