From Heavenly Feet this is premium sandal style Harmony. 

A stylish twist on a design classic, style Harmony is a comfortable and lightweight bio sandal.
A classic slider with twin-buckle fastening, a contoured foot-bed for great on-foot fit and comfort and a lightweight outsole with faux-cork effect.
A perfect summer essential.  

Upper: Faux Leather
Sole: Synthetic
Sole Height: 25 mm / 2.5 cm / 1 inch