Haven't found anything like them since they were discontinued a few years back. The thickest stretch gear with a built in hoodie. No gaps between your head and shoulders to let the sting of winter bite your neck. The last of mine are nearly worn out.
Heard they were discontinued because of the bad rap that hoodies get...
https://www.underarmour.com/en-us/mens-armourstretch-coldgear-hoodie/pid1238390