PRO CLUB heavy weight T-shirt, size L, gray, a single piece combining durability and comfort. - Brand: PRO CLUB - Model Name: HEAVY WEIGHT - Material: 50% Cotton, 50% Polyester - Size: L - Color: Charcoal Gray I've only worn it once. I thought I'd wear charcoal as an undershirt all the time, but I had too many other clothes that could substitute. The neck is still tight, it's almost uncomfortable.