Women's ASICSA(R) GEL-NIMBUSA(R) 20 BOSTON :: Run Boston strong in your official race colors with the Women's ASICS GEL-Nimbus 20 Boston edition. Fly on high-mileage clouds with FlyteFoamA(R) cushion giving this fan favorite its awesome bounce back and instant response. Keep blisters away with your plush OrthoLiteA(R) foot bed managing moisture and breathability. Lock into your PR pace with the Nimbus 20 Boston thanks to the Heel Clutching System(TM) providing endless miles of no-slip running.