Brynn’s white dress is by A.L.C. It sold out in most sized almost instantly after this episode aired. There are a few random sizes left at different retailers, and some are on sale. Check them out below. On the bright side, the designer made a very similar dress more recently, and there are a lot more sizes available! Linked below under similar items winterwhite dress fashion rhony holiday sale bravo LTKHolidaySale LTKsalealert LTKSeasonal