Lululemon Black Long Sleeve V-Neck T-Shirt Thumbholes. No rip tag or size dot. I can't remember what size it was, but in my opinion fits like a S. Measures approximately 18" pit to pit. Happy to take any additional measurements that you'd like! Generally good condition, but shows some wear. In particular, there is a stain on one sleeve (5th photo) and some wear to the stitching, particularly near thumbholes (4th photos).