Designed specifically for running these Superfeet Women s Run Comfort Insoles will help minimise foot fatigue while gaining efficiency by offering you a comfortable & well supported fit We are really impressed with these insoles & the main differences to the comfort green insoles is the lightweight Evolyte carbon fibre stabiliser cap which has been moulded to the Aero Spring Dual comfort foam both of these components offer a softer & more cushioning feel while they also have the addition of a small gel impact pad in the heel which ensures enhanced shock absorbency These running insoles have been designed with a slimmer heel & arch length to fit the proportions of a female foot & they have a long lasting odour control to keep your favourite running shoes fresh