UA Base is a system of baselayers, numbered from 2.0 to 4.0, that takes you from cold to absolutely freezing temps. It's constructed using a special negative grid pattern with each individual cell designed to trap heat without adding bulk. Think long underwear, reengineered for athletes performing at their peak. UA Base 2.0 is built for cold weather and higher activity levels.
Under Armour - Men's Base 2.0 Leggings
UA Women's Merino Base Reversible Legging - Westside Stores
Under Armour ColdGear Base 2.0 Leggings Mens
UA Men's ColdGear Base 4.0 Crew
Under Armour Women's ColdGear® Base 2.0 Leggings
Under Armour Men's Tac ColdGear Infrared Base Leggings, Federal Tan (499)/Federal Tan, Large : Clothing, Shoes & Jewelry
Under Armour Men's ColdGear Armour Leggings
brand: Under Armour
UA Base 2.0 is built for cold weather and high activity levels. It uses a unique pattern that's designed to trap heat without adding bulk. Think long
Women's UA Base 2.0 Leggings
Women's ColdGear® Authentics Leggings
UA Men's ColdGear® Base 2.0 Leggings