Reebok Negotiator Running Shoes Synthetic and Mesh Upper - For added comfort, support and breathability keeping your feet ventilated. High-abrasion rubber outsole - For enhanced traction and durability with flex grooves. IMEVA injection-moulded - For the ultimate in cushioning and comfort for your feet whilst running. Padded ankle Collar and Foam Insole - For a tighter and more comfortable fit reducing irritation and looseness.