Recycled Stitching. No Glue. Flexible outsole in natural rubber. Laser cut pattern. Recycled microfiber. Designed in Denmark p Platform Tulip shoe. The upper is made of recycled microfiber with a decorative laser cut pattern. It is attached to the outsole with matching recycled thread, using no glue. Inside the shoe is a soft and comfortable insole lined with pigskin. The flexible plateau outsole is made of 75% natural rubber and 25% recycled rubber. Insole: 60% EVA and 40% Pigskin.