She's in the loop with fresh and fun style! Leather and synthetic upper features eyelet and strap design. Hook-and-loop closure for easy on and off. Smooth leather lining and footbed. Durable rubber outsole. Incredible benefits provided by Primigi's uniquely created Sky Effect System. The Sky Effect System is a special insole that possesses all of the characteristics of a normal Primigi insole as well as some unique features such as: flexible, lightweight, shock-absorbing, breathable, and anti-bacterial.