The Columbia Sportswear Women's Bugaboo Insulated Pants are water proof but breathable with columbia's Omni-tech. It has an adjustible Waist as well as an Internal adjustable leg gaiter for a customized fit. They also include a zip-closed security pocket to secure whatever you take with you, and a reinforced cuff, to keep them in good shape no matter what kind of terrain you encounter. The lower snap gusset keeps you warm and dry.