I'd say it's a heavy medium-weight or a light heavy-weight sweatshirt. It' not the thickest I've seen, but certainly not the thinnest, cheapest either. It was just what I was looking for. I found the sizing to be generous. It shrunk a bit after wash/dry, but, being 90% cotton, I expected it would, so no surprise there. Just a potential reminder to others reading this review. The sweatshirt is comfy, seems well-made and also seems to be tight-knit. I was looking for 100% cotton, but the prices on those is too steep for me. This 90% cotton was the second best I could find, and the ONLY one above 50/50 or 60/40 (cotton/poly). The price was great, too. I really like my sweatshirt!