Our SAS Cool Step Footbed uses an anti-bacterial foam material that aids in wicking moisture from the foot's surface. Cool Step O2 foam is engineered to be firmer and more supportive under the heel for stability and softer under the forepart of your foot for cushioning.
(S): recommended for the slim width shoes
(N - M) : fits a narrow or medium width shoe
(W - WW) : fits a wide or a double wide width shoe
(WWW) : recommended for the 3W width shoes
NOTE: Recommended for SAS men's styles : Time Out, VTO, Guardian, Bout Time, Side Gore, Journey, Journey Mesh, JV Mesh