The Birkenstock Gizeh sandal features a single strap which creates a thong style. Each Birkenstock is made from the highest quality material inspired by the natural imprint of a foot in the sand and holds the feeling of being barefoot. STYLE TIP: Style your Birkenstock Gizeh's with a cute summer dress or linen jumpsuit for an easy summer look. For colder days pair them with jeans! FEATURES: - Birko-Flor upper- Leather lined cork foot bed - Synthetic Strap- Single strap up the foot, which extends to cover the width FIT TIP: It’s important to measure your foot accurately to find the right size shoe. To work out the size and width you will require, please follow these steps: Measure the length of your foot by standing on a flat surface with your full weight on your foot, then measure the distance from the back of your heel to the tip of your longest toe. Add 10mm to your foot length to allow your foot room to move. This will give you the footbed length you need to find your size. Measure the width of your foot across the broadest point. Compare your foot width measurement to the footbed width in your size to see if you will need a narrow or regular width. RETURNSMight change your mind? Our 14-day returns policy means you can shop online with confidence.