Designed with a nod to our iconic yellow boot, this Cortina Valley women's style is waterproofed. We also used quality materials in its construction, including GreenStride™ soles made using an EVA blend including at least 65% biobased materials derived from sugar cane and responsibly grown rubber.,Shop Timberland.com for Women's Cortina Valley 6-Inch Waterproof Boot. FREE shipping with membership!