So. Iβve been burned a couple times by items from Wanelo before & they have attempted to help. Iβm so glad this dress is perfect. Itβs thicker satin type material, not see through. I wear size medium size 8 in US sizes. Iβm 5-4/139 lbs. I ordered an XL and it fits perfectly. Definitely size up if you order this. It took 3 months to get because of the pandemic.