ASICS. 1012A885402. WOMENS GEL-NIMBUS 23. GRAND SHARK WITH DIGITAL AQUA. The GEL-NIMBUS 23 running shoe continues to offer excellent comfort and long-run impact absorption. Its improved stability provides a more balanced stride that s followed by smoother transitions. Constructed with comfort and breathability in mind this shoe features a softer engineered mesh design for long runs.