Elite ASICS Distance Runner Diego Estrada puts the all-new GEL-Nimbus 16 running shoe to the test, and discusses why he chooses it for his run-training. And thanks to new Fluid features -- a FluidFit upper and FluidRide midsole -- the supreme cushion and comfort that the GEL-Nimbus is known for has gotten even better, making every step a luxurious running experience for the neutral runner and underpronator.