The UA Perpetual Series is what 20 years of the most cutting-edge Under Armour training innovation gets you. Every single detail was taken into account, from fabrics that are impossibly comfortable to engineered stretch at every level. All of this, plus designs that look forward, not back.
Fitted: Next-to-skin without the squeeze.
ColdGear® Reactor adapts to your activity level for the right breathability & warmth for what you're doing
Double-knit fabric is soft, stretchy & substantial
Super-breathable burnout effect on back
4-way stretch construction moves better in every direction