Theory parka rain jacket Sz L fits M or L

Designer rain parka jacket is made of 100% natural color linen coated in black water- resistant poly coating with partial fine white cotton lining in the back and original natural linen inside . Two zip side pockets , draw string waist , zipper, hooded. I’m sure S/M and it looks great on me, but it would feet size L as nicely as it’s really roomy and adjustable. Must have for spring - summer. Immaculate pre- owned condition . Length in the back 38”, front 35”, sleeve from back 31”