cassolotl, I bought this lovely linen tunic from Etsy in "light grey" (see colour swatch pic), it's XL (see size guide), and it doesn't fit me - but I have been so busy that I wasn't able to return it in time!
It was pretty expensive and it is quite lovely, so I thought I would offer it up here. Would anyone like to make me an offer? (Don't worry about whether I'll be offended by your offer, I can't return it so any offer is welcome!)
Colour swatch.
Size XL. UK/US 42. EU/IT 52. Chest 104-106cm, 40.9" - 41.7". Low waist 92.5-94.5cm, 36.4" - 37.2". Hips 105-107cm, 41.3" - 42.1". Sleeve 89cm, 34.5".