Size US10/EU42 — my normal size wasn’t available in the Archives, and the guidance on the site says to size up so I got one size up. I was swimming in these. I would get your normal size or even go one size down.
For reference, I am 5’6″ and my measurements are 34B-28-39.Sezane,10,$90,5’5-5’6 5’5-5’6,Bottoms,French Brands,Pants,Size 10 All Reviews,Sezane
I'm 5'5 and usually wear size 0 / or size 25 in pants. My current favorite pair of jeans is from Sezane and it's their 'Lukas trousers'. The thick denim material looks very high end and is warm for the winter days in the South. I love the thick belt loop and the belt that it comes with. The only con is the length - ~33 inches for inseam, which is not petite friendly. All of the Sezane pants have at least 33" of inseam. I had to get them hemmed. Luckily, I have a very skilled mother who can hem clothes for me. If not, I think it would be quite expensive to hem these jeans and preserve the folded look at the bottom. Wearing the size 2/FR 34.Sezane,2,$175,5'5-5'6 5'5-5'6,Bottoms,Denim,French Brands,Size 2 All Reviews,Sezane