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Thanks for your help Shuze!
I only give authentication opinions on selective sneakers as you just can't compare molded soling with traditionally lasted footwear. That being said, they look fine to me. You also can't compare fit with traditional Saint Laurent footwear which is made in Italy as these are contracted out in Spain as are their espadrilles. I have no answer to why a 35 footbed would be in a 36.5 shoe but if they feel OK I wouldn't worry about it.
Thanks for your help Shuze!