Full length provides complete heel-to-toe comfort * Spencore material exclusive cushioning layer absorbs shock and impact to provide maximum comfort * Flexible arch cushion provides the additional stability and support necessary to help maintain proper foot position, while helping to relieve and support tired feet * 7 sizes for correct arch cushion placement for better overall fit, comfort and performance * 4-way stretch fabric with silpure antimicrobial helps prevent blisters while controlling odor