Nitrogen-infused FuelCell cushioning and responsive energy return keep you moving in a running shoe that takes you the extra mile on the road or the treadmill. An engineered knit and TPU heel frame ensure a reliable fit, while durable rubber on the tread keeps every stride grounded. Sizing: True to size. B=standard width, D=wide width. Running. Round toe with bumper. Lace-up vamp. Contrasting construction. Removable padded footbed. Logo detail. Grip sole. ImportedThis item cannot be shipped to Canada.