Birkenstock Leather-Lined 3/4-Length Air Cushion Insoles Slippers Thickness at heel: 5

Thickness at heel: 5

Soft and lightweight heathered knit upper that is lined with wool

Covered with a luxurious shearling wool

Highly breathable

Birkenstock Leather-Lined 3/4-Length Air Cushion Insoles Slippers Thickness at heel: 5Overview The Birkenstock Air Cushion 3 4 Length Leather 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 option.