I bought this sweater for an ugly christmas sweater party! The sweater seems to be made of a high quality material and it fit just fine...maybe a bit snug. Consider maybe ordering one size larger than your normal sweather/shirt size. I didn't feel any heat from the lights either...so don't worry about over heating!

I gave it five stars because it won me third place in the ugly christmas sweater contest...out of like 30 people! I wish the LED lights were just a bit brighter. You can see them in a lit room...but they are so much brighter in the dark. Unfortunately how often are you in the dark?