New Balance Men’s 623 Training Shoes. A solid choice for your training routine, the New Balance Men's 623 Training Shoes feature leather uppers that provide comfort and style. Foam insoles help keep your feet comfortable, while EVA midsoles provide cushioning and support. Rubber outsoles offer traction and durability. Lace closures. Features and Benefits EVA midsoles provide support and cushioning Rubber outsoles offer traction Leather uppers lend style and durability Foam insoles for comfort Lace closures Specifications Activity: Training Material: Leather Size 12 Width D/medium