conic light weight Tulip shoe by Ilse Jacobsen. The upper is made of recycled microfiber and nicely decorated with a laser cut pattern. The upper construction is made without any glue as it is attached to the outsole using recycled thread. The insole has padding and support, ensuring great comfort. Our iconic Tulip sole is made of 75% natural rubber and 25% recycled rubber. Insole: 60% EVA and 40% pig skin. Upper: Recycled microfiber - 60% nylon, 40% PU.