It's seen that BB is wearing a bodysuit in the material. BB

Perry Fixed-Back One-Piece - Blueberry

Nazare Bodysuit - Ryde (RC-Skin) - Seea

Sasha Flocking Mesh Longline Bralette by Cotton On Body Online, THE ICONIC

Nico, Active, Adjustable, Tie Back Swim Onesie

Transparent Body Color Transparent Body Bodysuit Long Sleeve Women Body Color - Body Suits - Aliexpress

Newborn Infant Baby Boys Tie Gentlement Dinosaur Print Romper Bodysuit Clothes

UPF50 Kids Swimwear Swimsuits, Swimshorts, Rashies, Sunhats and more – Blended by Pip

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Jersey G-string Bodysuit - Light beige - Ladies

Nico, Active, Adjustable, Tie Back Swim Onesie

Curvy Kate First Class Tankini Top Black – Curvy Kate UK

bodysuitのTwitterイラスト検索結果(古い順)。