The Sonja features:

• Protective heel counter allows the heel to move up and down freely while providing lateral stability
• Padded instep collar for extra comfort
• Leather uppers. Nubuck treated 3M Scotchgard protector for stain resistance
• Roomy reinforced toe box allows toes to move comfortably with plenty of "wiggle room"
• Leather-lined, breathable, single-density open cell PU foam sockliner
• Contoured PU midsole provides arch support
• Inner frame provides stability
• PU outsole with a wide heel strike for stability
• Anti-fatigue rocker bottom promotes forward foot motion for shock absorption and energy return
• APMA Seal of Acceptance