Stutterheim Rain Coat XXXS Mosebacke Original Green

Bought this gorgeous coat in 2018 when I was much smaller but it doesn’t fit me now. Paid over $500 after duties and everything. Great coat, excellent craftsmanship. Just wish it would still fit me! Some marks from regular wear are pictured. Not sure what the small coloured patch is from (near the debossed logo) but it’s not very noticeable to the naked eye (camera picks up more detail than IRL). PLEASE NOTE THIS IS NOT A STRETCHY COAT. It’s made of rubberized cotton. The size is xxxs. For reference I was 5”6 and weighed 114 lbs when it fit me. I have included the measurement guide from the website for additional reference.