S means small, which translates roughly to a women's size 4 to 6 in most brands.

Is Size 6 considered small?

What Is a Size 6? Size charts vary across the world. But based on this women's clothing size conversion table, size 6 in the United States and Canada is considered small.

Is a 27 inch waist small?

By every standard measure, you actually have a waist size that would fall in the XS-SM range for standard clothing range. The average waist size for american women is around 37 in. So at 27 in, you fall in the standard of having a very small waist!