Sandal model with the possibility of adjusting the size by means of Velcro straps on the toes, on the instep, on the heel. Materials upper: hand-dyed full-grain Master calfskin crust leather lining: leather-colored full-grain calfskin insole: Genuine vegetable tanned Tuscan leather bottom: real vegetable tanned Tuscan leather with possibility of real rubber graft. heel: half leather half rubber H 7mm heel strap: vegetable tanned leather Color/Finish: Yellow Dyed and Hand Polished Nikel free metal loop.