I bough the white linen martha pants in a size 10. Usually I can fit a size 8 pant but I thought I would size up to the 10 for a more loose comfortable fit. This size was perfect for me and luckily I did (after reading reviews) as the waist band is not stretchy and would've been tighter if I went with the 8. Size 10 was perfect for me (I did have to take them up about 5cm or so as they are a long make which is good if you are tall. I am 164cm and 62kgs if that helps. Overall love the pants, not as see through as I thought after reading some reviews and amazing quality.