NWOB Mahabis Classic in Larvik Dark Gray. Perfect to run errands or to lounge around in, these revolutionary slippers are quick and easy to slip on. The Mahabis classic slippers have a dark Grey upper and Black soles. The highly durable tpu soles have a multi-surface design, allowing you to wear your slippers all-day, everywhere. The light, snug cushion-fold heels keep the look minimal but comfortably secure. This slipper keeps the warmth in and the cold out.