The design was created for my monoamniotic twins. Monoamniotic twins happen in about 5% of identical twin pregnancies. It occurs when identical twins are in the same sac during pregnancy. The odds of loosing one or both twins in this type of pregnancy are very high. As much as 50-60% of these types of twins don't make it. This shirt celebrates the fact that my twins did make it, they beat those odds! If you also had monoamniotic twins, this shirt is for your little survivors too!