The award-winning Gel Cumulus series just keeps getting better, with the sixteenth version sporting a top-of-the line Fluid Ride mid-sole and larger rear-foot and fore-foot Gel Cushioning units. When combined with an updated Guidance Trusstic System and refined open-mesh upper, under pronators to mild over pronators will be treated to the lightest and most cushioned version of the Gel Cumulus series ever.