Keywords such as white eyelet top flutter sleeve may help you find a similar piece or the exact top second-hand

Wash Care: Machine wash with laundry bag recommended, hand washable in cold water, do not bleach, hang dry.Body Measurements:XSHeight:63-65 inch Bust:32.3-33.9 inch Waist Size:24.4-26 inch Hip Size:34.3-35.8 inchSHeight:65-66.9 inch Bust:33.9-35.4 inch Waist Size:26-27.6 inch Hip Size:35.8-37.4 inchMHeight:65-66.9 inch Bust:35.4-37 inch Waist Size:27.6-29.1 inch Hip Size:37.4-39 inchLHeight:66.9-68.9 inch Bust:37-39.4 inch Waist Size:29.1-31.5 inch Hip Size:39-41.3 inchProduct Measurements:XSShoulder : 10.7 inch Bust : 33.5 inch Waist Size : 33.7 inch Hip Size : 36.4 inch Length : 46.5 inchSShoulder : 11 inch Bust : 35 inch Waist Size : 35.2 inch Hip Size : 38 inch Length : 47.2 inchMShoulder : 11.3 inch Bust : 36.6 inch Waist Size : 36.8 inch Hip Size : 39.6 inch Length : 48 inchLShoulder : 11.7 inch Bust : 39 inch Waist Size : 39.2 inch Hip Size : 41.9 inch Length : 48.8 inchStyle:CasualWaist Line:NaturalDetails:SplitHem Shaped:SlitSpecial Features:Forest-Safe FibersPattern Type:PlainFit Type:Regular FitComposition:95% ViscoseComposition:5% ElastaneCare Instructions:Machine wash or professional dry cleanSheer:NoFabric:Slight StretchOccasions: Party Dress, Cocktail Dress, Club Dresses, Concert Outfit, Homecoming Dress, Wedding Guest Dresses, Date Night Dress, Going Out Outfits, Summer Clothes, Night Out Dresses.Suits for Date, Daily, Beach, Travel, Party, Going Out, etc

This long sleeve mermaid wedding dress products must be returned in new and unworn condition, with all original packaging, tags, and certificates of authenticity
Just make sure that you and your date both have a plateful, cause it can be a little garlicky
I personally prefer a fit thats secure at the waist but not tight across the hips, because thats where movement happens