Guardian is your super functional and ultimately comfortable Medicare and Diabetic approved work shoe. SAS X-Tra Grip Sole and Waterguard leather helps you navigate spills and messes. CoolSTEP foot bed keeps your foot cool and dry no matter how long you�re on your feet. SAS Tripad comfort system provides extra shock absorption to the pressure points of the foot, while EZ Lace System creates even pressure across the instep.�