Next - Light Grey Thin Linen Trousers - Size 10/11 Unknown

This is a donated item. USED

Size unknwon - can't figure out from info on trousers which say only 10/11 on a white small label (see images) Guesstimate at best a Large / XL
No visible damage or holes.

Laid flat measures :
Waist 45cm
Waist to hem 106cm

Looks to be in very good condition, possibly slightly bobbly from wear / washing.

They have an inner drawstring as well as the normal zip and button
I've tried looking these up online to get a better idea of what size they may be but I can't find anything using those numbers etc shown inside.