VIONIC. 10011247 NAT. GEMMA MULE SLIPPERS. NATURAL LEOPARD. Pamper your feet indoors with these soft and comfy spa-style mule slippers with hook-and-loop adjustable closure. Podiatrist-designed biomechanically contoured arch support and deep heel cup to realign your stride and help prevent moderate to excessive pronation. Flexible EVA midsole absorbs shock reducing stress on feet ankles and knees.