ILSE JACOBSEN Tulip Slip-In Blue 36 The Tulip Slip-In is a stylish and comfortable slip-on sneaker. It features a breathable upper with a unique pattern and a lightweight, flexible sole with traction grip. The shoe is perfect for everyday wear and is available in a variety of colors. Ilse Jacobsen. Fit: Normal. Upper: 100% recycled microfiber. Insole: 100% pigskin. Outsole: 100% natural rubber. Lightweight and flexible sole with traction grip. Packaging dimensions: 29 x 15 x 10 cm. EUR 70.00 1