The abbreviation of Ballerina slippers is ballerinas that souds like only ballet dancers would like to wear this kind of slippers.But actually,ballerinas are suitable for every fashion ladies or girls.Ballerinas used synthetic suede as outsole which is soft,flexible and light.You can wear it in house to do anything including exercises.Put on ballerinas you don't need worry about the slippers fall off when you're doing exercises since this type of slippers has enclosed back heel and the shape is similar to shoes but more light and soft.
From its name you might know why it called as ballerinas because the construction of ballerinas is around 95% similar as the professional ballet shoes.The main difference between the ballerina slippers and the professional ballet shoes is that the ballerina slippers alway laminated foam to make slippers are warmer but professional ballet shoes not.