Size Small will fit US shoes size 5.5 - 8. Size Large will fit US shoes size 8.5 - 12

Features:

• Ergonomic mid sole high arch support comfort insoles.
• Heel cushion provides better ground impact for your foot.
• Helps relieve pressure points that may cause foot fatigue.   
• Keep your height increase without compromising your foot�s comfort.
• Enhance your walking experience with these comfort insoles.
• Provides shock absorbent.
• Lightweight bottom layer synthetic foam.  
• Comfortable for all-day wear.
• Durable top layer.  
• Fits into any shoe.