Crocs Winter Puff Boot Boots Women Black / Charcoal 4. Walkin’ In A Winter ComfortlandMake light of winter and step out in these versatile, easy-to-walk-in boots. They’re light and sporty, with just enough warmth to get you around town in style. Women’s Winter Puff Boot Details: Puffy nylon upper with fill for warmth Croslite™ material base makes them incredibly light and comfortable Sporty, sneaker-inspired band Rubber outsole pods improve traction and durability Iconic Crocs Comfort™: Lightweight. Flexible. 360-degree comfort. Measurements based on women’ size 7 (measurements will vary by size): Circumference: 16.7 inches / 42.5cm Shaft Height: 9.8 inches / 25cm