Mephisto | Shoes | Mephisto Edlef Cool Air Slipon Dark Brown 。These pre-owned shoes are in good condition; they show some signs of wear—as can be seen in the photos—but nothing serious. With proper care, they should last a long time, as they are crafted from high-quality natural leather. What you see is exactly what you will receive. Fast shipping. Material and Manufacturing Details • Exterior: High-quality smooth natural leather, selected from the same hide to ensure uniformity in texture and durability. • Interior: Fully lined with fine calfskin (glove-style lining), allowing for natural foot breathability. • Technology: Features removable Cool-Air insoles and a natural rubber sole with shock-absorbing properties.