Birkenstock Birko-Tex Lined 3/4-Length Air Cushion Insoles Tier 5 DryTek Fabric Top Cover provides

DryTek Fabric Top Cover provides a long-lasting top cover designed to wick away moisture from the skin

patent-pending texture which will safely and effectively allow optimal connection between the plantar foot and the brain

The Spenco RX Comfort Insoles are completely flat from heel to toe and from outside edge to inside edge

The Carbon Activated Filter Pad promotes air circulation

Birkenstock Birko-Tex Lined 3/4-Length Air Cushion Insoles Tier 5 DryTek Fabric Top Cover providesOverview The Birkenstock Air Cushion 3 4 Length Birko Tex Lined Insoles offer heel & midfoot cushioning to help alleviate pressure and provide added foot comfort. Designed based on footprints in sand, the insoles feature thinner cushioning under the heel and thicker cushioning under the arch and metatarsals where the foot is naturally raised. Perfect for providing additional cushioning in tighter fitting shoes where full length insoles aren't an