3X sleeveless V neck floor length dress. Over the head. Spandex. Like new

3X sleeveless V neck floor length dress. Over the head. Spandex. Like new! This dress is perfect to wear just about all year round. Throw a cardigan or scarf over it for cooler weather or if you like your arms covered. There is some stretch to it also. There are not brand,size or fabric tags. Please go by measurements before purchasing. I feel it measures a 3X. Measures 28 inches from armpit to armpit and stretches 2 more. Length is 50 inches.