Spenco Polysorb Walker/Runner Athletic Insole, Women's 11-12.5/Men's 10-11.5

Features:

• 4-way stretch fabric with silpure antimicrobial helps prevent blisters while controlling odor
• Spencore material a 5/32 inch layer of this material absorbs shock and impact to provide intense comfort and cushioning
• Lightweight polysorb polyurethane foam provides heel cupping and contoured arch support
• Spencore heel plug provides extra cushioning and shock absorption in the heel
• Consumers who want targeted shock absorption for rear foot impact.