Rubber sole On CLOUD 5 :: This running shoe wOn't weigh you down. The lightweight, updated Men's On Cloud 5 gives you maximum impact protectiOn thanks to revolutiOnary Cloudtec in Zero Gravity foam absorbing both vertical & horizOntal forces. The new midsole with increased height & a closed channel forefoot add cushiOning & stability to this shoe's signature soft landings. Not to mentiOn, your energy wOn't be wasted with an updated Cloud 5 Speedboard that literally propels you towards your next PR.