Great piece of gear.
This is the best piece of winter gear that I own. I use it to run and cycle in during winter months. We live in Houston but in the past 2 weeks I have run with it in Montana and Colorado. It is not bulky, it is form fitting and with another long sleeve tech shirt under it I've been out in 20 degree weather with no issues. I recently purchased a 2nd one so as not to wear them out. I highly recommend this top.
XC PURSUIT TOP
My brother-in-law gave me one of these for Christmas 15 years ago. I wore it, by itself, alone, when it was 10 below zero. With a hat, facemask, long underwear, sweat pants, and a little Vaseline around my eyes and nose, I came back only a little cold on the sides of my belly. I’ve worn it, alone (no layers, no undershirt) and kept warm, even in the cold wind, -running through 15 winters, but finally rubbed a hole just below my armpit, where my arm rubs. The design’s changed a little, but I’m thrilled that I’m able to replace it with another of these great shirts! Highly recommended. The only running shirt you’ll ever need!