UnderArmour 4-Way Stretch Fabric: The material used in this piece of apparel was made using 4-way stretch fabric. This is a great feature for athletic apparel, where you may need to move and bend and not be restricted by your clothes.
ArmourBlock(tm): ArmourBlock technology neutralizes microbes that cause odor before there's any odor at all.
UnderArmour ColdGear: Recommended for use when temperatures dip below 55 degrees (F), ColdGear features a double-sided fabric that wicks moisture from the skin and circulates body heat. Stay warm and stay dry, and stay out there!
Tight Fit: Stretchy and form fitting for maximum range of motion. Feels almost like nothing is there...almost.
Flatlock seams: A unique stitching that doesn't add bulk where seams come together.