EUC Description from Nisolo website: Introducing the new and improved Alejandro 2.0. Handwoven breathability, slip-on convenience, enhanced comfort features, and relaxed yet elevated design that goes with everything, year-round. Convenient, slip on comfort Handwoven leather Premium cushioned insoles Versatile design for any occasion Breathable Slip-free rubber heel cap Vegetable-tanned leather sole Soft, yet sturdy leather lining 100% Living Wages, 0% Net Carbon Leather Working Group Certified leather This style fits true to size. Nisolo shoes are handmade from genuine leather. The handwoven leather may feel slightly snug at first but will perfectly mold to your feet over time. For the greatest comfort, we recommend wearing your new Nisolo footwear for just a few hours for the first few days to allow the leather to mold to your feet. Within three to five wears, the leather will soften and mold to your feet.