Omni-tech: our Omni-TECH technology features air-permeable protection that's waterproof and breathable. It provides excellent waterproof protection, keeping mother nature's elements out, at the same time allowing the inside to breathe. Handy features: this women's evolution valley pant features two side zippered security pockets and two back pockets to secure your small items. Comfort: with our 100% rebound stretch polyester fabric, these pants remain comfortable during any activity. Packable design: this pant features a packable design and leg vents to keep them lightweight and comfortable. Advanced technology: this Columbia women's evolution valley pant features our signature seam-sealed waterproof construction with breathability to keep you comfortable while protecting you from the elements.