Yosi Samra advises that their shoes typically run true to size. If you are a half size they suggest going up to the next full size. For example if you are a true size 6.5 they suggest ordering a size 7. Let your chic style stand out this season in the Yosi Samra Calliste thong sandals. Flat sandals made with leather upper. Studded detailing. Ankle strap with buckle closure. Single toe post. Leather lining. Lightly-padded fixed footbed. Rubber outsole. Imported. Measurements: Heel Height: 3 4 in Weight: 6 oz Product measurements were taken using size 9 width M.Weight of footwear is based on a single item not a pair.