Under Armour Charged Cotton Storm Transit Workout Pants UA Storm Gear - Uses a DWR (Durable Water Repellent) finish to repel water without sacrificing breathability. Charged Cotton - Has the comfort of cotton, but dries much faster. Lightweight Fleece Fabric - The 230g fleece has a smooth outer and a soft, brushed inner to trap warmth. Signature Moisture Transport System - Wicks sweat away from the body, keeping you cooler and drier. Iconic UA Halfback Elastic Waistband - With internal drawcord for custom fit.