Plus Fitting System - Two Removable Footbeds for Added and Double Depth Accomodates Orthotics Drilex Lining with AGEIS Shield for Odor and Stain Control Built-In Heel Cushion Pad With Rocker Bottom with Wide Shank For Ultimate Comfort and Stability Tempered Steel Shank and Extended Medial Heel Stabilizer to Protect Your Foot Throughout the Day Soft, Foam-padded Tongue and Collar Helps Protect Against Chafing