GEL-NIMBUS 21 Feel the confidence to push your run further with the re-engineered GEL-NIMBUS 21 extra wide width men's running shoe, designed to offer ultimate comfort and a perfect fit. Comfortable, clever and stylish, the GEL-NIMBUS 21 running shoes are the ideal choice for anyone looking for the ultimate way to go further. FLYTEFOAM Propel technology delivers high energy return for a bouncy ride, making it easier than ever to run and run and run. Improved GEL-NIMBUS fit and premium mesh upper adapts to the movement of your foot for a more comfortable ride, while providing more room in the forefoot. Iconic GEL Brand technology provides superior shock absorption where you need it most, for a more comfortable ride.