Size xs. The 409GSM (12.1oz per square yard) Double Heavyweight Crew Neck T-Shirt is made from one of the heaviest jerseys ever produced with a weight approximately two times that of a conventional heavyweight jersey. Circular knit in Japan, the fabric has an uneven surface texture. The Long Sleeve T-Shirt has a modern athletic fit with binder neck ribbed collar, union special flat side seam construction, ribbed sleeve opening, and is made in Japan. Worn once. Too small for me, had to size up :( Perfect for fall /winter. 409gsm / 12.1oz per square yard 100% Cotton Japanese Fabric Made in Japan