Birkenstock - Birko Sport 2-Part Insoles - Blue Size:42 Medium sleek fit that is equally

sleek fit that is equally comfortable

designed beautifully

And it’s cushioned

It’s designed for luxurious performance with a little extra bounce and added durability

Velvety suede on the outside

Birkenstock - Birko Sport 2-Part Insoles - Blue Size:42 Medium sleek fit that is equallyThis two part insole offers moderate support and cushioning for sports activities. The upper surface is made from damping BirkoZell. The underside is made from stable and shock absorbing BirkoKork. The parts can be worn individually or together. Anatomical shape Pressure distributed across entire tread area Damping materials For sporty shoes, leisure shoes