Waterproof and breathable. This multi-layer weather protection system keeps outside elements from getting in, while still allowing moisture vapors to move away from the skin. Columbia is first and foremost an outdoor product company. In many ways though, they are a technology company. Columbia's commitment to innovation runs throughout our entire product offering, and helps set them apart from the competition. Omni technologies have been designed with one thing in mind: your comfort. Whether it's keeping you warm and dry, cool and comfortable, or moving fast and light, Columbia focused on serious solutions for a simple challenge: Enhancing your experience of the outdoors with the best products you can buy.