UA Base 3.0 is built for very cold weather and moderate activity. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes.
Manufacturer
Under Armour Europe B.V., Stadionplein 10, 1076 Amsterdam - NL https://privacy.underarmour.com/s/article/Contact-Us?language=en_US#:~:text=If%20you%20have%20any%20feedback,Terms%20and%20Conditions%20of%20Use%E2%80%9D.