For accurate sizing, use a measuring tape to measure the chest circumference. Take the tape approximately 1 inch from arm pit, around the fullest part of the chest. Try to keep the tape level.
Fits perfectly. Not too big or too small. It's nice and soft but still keeps the cold out. Perfect for temp running from the low 40s to 60s. Well it is if you're at practice.
The sweatshirt is awesome. It is so comfortable and warm. Only thing is it runs a little smaller than other XL’s