Women's Keen Outdoor Greta Tall II Boots The Women’s KEEN Outdoor Greta Tall II boots are built for winter exploration with KEEN.DRY waterproof protection and all-weather traction. Featuring a tall quilted shaft for added coverage and warmth, these boots deliver dependable performance through snow, slush, and cold conditions. A cushioned footbed and rugged outsole provide comfort and stability whether on trails or city streets.