Madrid Big Buckle : White Size:42 Narrow It offers an adjustable velcro

It offers an adjustable velcro ankle strap as well as an adjustable toe strap to ensure a secure fit

Footbed Material: Cork

Upper Material: Nubuck leather/Suede

while the flexible cork base provides necessary support for all the arches in your foot

but it can be used in the Profi Birki 2

Madrid Big Buckle : White Size:42 Narrow It offers an adjustable velcroFirst made in 1963, the original Birkenstock exercise sandal remains a popular favorite! The Madrid is designed to exercise the foot and lower leg as you wear it. Your foot will flex and grip the toe bar while walking, thus promoting good circulation, building strength and helping to prevent injury. Brand: Birkenstock Upper Material: Leather Sole Material: Extra thin EVA Footbed: Solid cork with leather lining Arch Support: Maximum Made in Germany