A simple definition of base size is the size of wrap needed to tie a front wrap cross carry when carrying a single baby.
What does that mean for me? What is my base size and how do I work it out?
A base size wrap is always a long wrap (sizes 5 – 8)
Clothes size (for your top half) is a good general indicator of wrap size needed, but there are other factors that will also affect your base size:
Size/age of your child. A younger baby will take up less wrap length than a toddler.
Wrapping experience – a more experienced wrapper will be able to remove more slack from the wrap.
A survey of the Firespiral team (with our different body shapes) has the result that we all have the same base size (6).