The LOVEBIRD STUD slide sandal is handmade with the highest quality, softest, most pliable leather we can find. The upper is 100% leather as well as the sole so each pair will mold to your feet for a custom fit within hours of wear (this upper is double lined with an additional soft leather so that no studs hit your foot). This LOVEBIRD features a molded arch for ultimate comfort and support and our leathers are vegetable-tanned, the most sustainable method available, from tanneries gold-certified by the LWG (Leather Working Group). Our footwear is meant to be in your closet for a lifetime. Wear them forever, they only get better.