Jack & Jones DUDELY Mens Microfiber Mule Slippers in Castlerock. These slippers feature a polyester upper and lining, with a rubber sole. They are designed as slip-on mules with a warm lining for comfort and breathability. The toe shape is round, and they have a regular shoe width and a flat heel height. The item weight is 0.43 KG, and they are a low-top shoe shaft height. Product Code: 12170310-3307893.