BACKALAST Compression Wear Posture Jacket, Size A4 (Adult XS). If you have wanted to try this jacket now is your chance! Purchased directly from BACKALAST. Worn only a few times for PBT class in studio. I also have a SIZE CHILD LARGE jacket available on Poshmark, this was the replacement size I ordered. Also outgrown. Selling here for a discounted price. Jacket designed for ballet barre and PBT (Progressive Ballet Technique) classes. Please read company product description and sizing info on their website: https://pbtstore.com Currently selling online for $94.00 PLUS Shipping 💸 Selling from a smoke free home. Please let me know if I can answer any questions.