NauticaMen's Long Sleeve Lightweight Cotton Woven Robe, Color, Size

What is the length for a Medium robe?

Could someone who bought the l/xl measure across the back from seam to seam at the underarms, please? my dad usually wears xlt.

do you have a bathrobe and matching pajama set?

What does it mean by "elastic waistband with functional drawstring"? Not understanding an elastic waistband on a robe.