SAS Me TooDesigned to fit and follow the shape of your foot and made on an exclusive SAS Walking Shoe Last. SAS Tripad Comfort Cushions give all day comfort. Initial fit should be wide enough to stay very comfortable across the ball of the foot yet roomy enough in the front so the toes are not cramped. The heel should be snug and should not slip while walking. SAS CoolStep Footbed: The CoolStep removable footbed is designed to keep your foot dry and comfortable