REFINERY29: Upside down bikini trendJune 2021 If you’ve been seeing flossy, string bikinis tied upside-down, sideways, and crisscrossed all over TikTok and Instagram, you’re not alone. We rounded up 16 styles that are perfect to get in on the upside-down bikini trend, ahead. Share on Facebook Opens in a new window. Tweet on Twitter Opens in a new window. Pin on Pinterest Opens in a new window. Back to blog