BIRKENSTOCK YALA. Super smart pink sandal from BIRKENSTOCK. The sandal has two adjustable straps with velcro so you can adjust the sandal quickly and easily according to the child’s foot. A strap over the foot and a strap over the ankle. BIRKENSTOCK products are completely unique. Inside the shoes, anatomically constructed footboats are constructed to give the foot the optimal support. BIRKENSTOCK special shoe design relieves the body and distributes the load properly – therefore you always go well in a pair of BIRKENSTOCK. This is the narrow model.