I find the fabric to be lightweight and breathable. It fits true to size. I find some medium jerseys from other providers tend to fit me tightly around the chest and shoulders, but I found this to be perfect for me. I have skinnier arms, so the sleeves fit me very well. However, one of my friends with larger arms did mention the jersey felt a little tight in the arms for them. All in all, very happy with the product.

Love the design. Big patch isn't great and sleeves are quite tight but otherwise good

This fits so well!