The Koak Backstrap features:

Upper Materials: Nappa leather
Sustainability: Chrome-free tanned lining leather, Repairability, Vegetable Tanned Upper Leather
Brand Color: Black/Combi
Group: Koak
Inner Material: Leather lining
Fastening: Velcro Fastener
Type: Sandal
Heel height: 30 mm
Sole: Ethylene Vinyl Acetate (eva)