Your mom always boasted about the fact that you knew all the alphabet letters by the age of 3. But truth is, she's wrong. The only letters you know are the ones in these black buffalo leather Cassandra 120mm sandals from Saint Laurent. And they're not even in the right sequence, so... Sorry, mom, not sorry. Featuring an open toe, a branded insole, an ankle strap with a side buckle fastening, a high wedge heel, a strappy design and a tonal YSL logo to the front.