Product details:

Featuring a more accommodating forefoot fit, added underfoot comfort, and a softer landing, the ASICS Cumulus 21 is ready for the bulk of your miles. What's NewMore height in the toe box and across the ball of your foot. Better and more comfortable cushioning underfoot.New grooves in the sole under the heel for a softer landing. More foam in the heel collar for added comfort. While the Cumulus 21 looks similar to its predecessor, the upgrade from a Flytefoam midsole to Flytefoam Lyte gives this shoe a slightly softer and more comfortable ride. Also, the upper received a new multi-directional mesh upper that reduces weight and enhances breathability.