So. I’ve been burned a couple times by items from Wanelo before & they have attempted to help. I’m so glad this dress is perfect. It’s thicker satin type material, not see through. I wear size medium size 8 in US sizes. I’m 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.