The birkenstock new york model is perfect for very active children. It fits perfectly and offers a light and ventilated feel, even at peak times. The upper material is made of birko-flor, a durable and skin-friendly synthetic material, presented here in an elegant nubuck look almost identical to genuine leather, both in texture and colour. Anatomically shaped cork and latex insole. Upper material: Birko-flor nubuck. Insole top layer: Suede. Sole: Eva. Details: Two straps, each with an individually adjustable metal pin buckle; heel strap. "made in germany". upper material: Birkoflor nubuck. The birko-flor nubuck material has succeeded in mimicking the feel of genuine nubuck leather almost perfectly. Inner sole: top layer of leather insole. Leather covering, flexible and harmless to the skin, that welcomes the foot by adopting its shape and folding to its profile. The surface of the lining has a honeycomb structure, which makes it particularly breathable, thus allowing a pleasant atmosphere inside the shoe even with intense physical activity. Inner base material: Cork. Cork is a regenerable raw material that is extracted from the bark of the cork oak. It is a natural product that insulates heat and has excellent damping properties. Contact sole: Eva. Eva (ethylene vinyl acetate) is a high-quality plastic, endowed with particular lightness and elasticity, which also offers extremely good damping properties. In this way, it manages to compensate for small irregularities in the floor and provides a gentle cushioning of steps when walking. 87773 Narrow fit.