For runners of average build. For everyone from beginners to marathon trainers who want a shoe for jogging. This shoe is perfect for jogging everyone, from beginners to runners training for marathons. The MIZUNO ENERZY midsole is 2 mm thicker than the previous model, increasing cushioning and energy return, giving a softer feel and providing a spring-like propulsion. Enjoy the characteristic running comfort of WAVE RIDER while benefiting from enhanced smoothness and stability.