Light and comfortable, but prone to pilling
I love both of the shirts from Virus I own which are made of their "Premium Custom" material. They are excellent for keeping cool while working out. My only complaint is that they are prone to pilling even when I followed the care instructions for washing (cold machine wash, hang dry) and I made sure to use the "delicates" setting, too, since it's a pretty thin shirt (and I was washing other delicates with it anyways). To keep the pilling from showing, make sure to turn your shirt inside-out before putting it in the washing machine. Or maybe hand wash it to avoid pilling.
Rated 3 out of 5
Rated 5 out of 5
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large