XS but fits like S ✨ I chose S on the description because it more accurately represents the fit of the shirt Design: The shirt features a collared neckline and a button-down front. It has a regular fit. Material: Polo Ralph Lauren shirts are made from high-quality materials. The fabric is usually soft, breathable, and durable. Logo: A signature Polo Ralph Lauren logo is embroidered on the chest- a small polo player on a horse. This logo is a recognizable symbol of the brand. Versatility: Polo Ralph Lauren shirts are versatile, suitable for both casual and semi-formal occasions. They can be worn with jeans or chinos for a relaxed look or paired with dress pants for a more polished ensemble.