I bought this about two years ago at BEAMS BOY. It's a Ralph Lauren special order from BEAMS. XS was available in the BOY line, and BEAMS carried sizes from S and up. It has a special feel with the reversed pony, unique to the BEAMS special order. It's unused with tags, so it's quite rare! I didn't have many chances to wear it because I mostly wore T-shirts in the summer... I really like it, so I hesitated, but I'm putting it up for sale. Unused with tags XS Unisex Shoulder width: approx. 42cm / Length: approx. 72cm / Body width: approx. 46cm Please understand that there may be slight variations due to actual measurements! Light blue stripes 100% cotton Feel free to leave a comment!