Description Lands' End Women's Insulated Flannel Lined Chelsea Duck Boots NWT, No Box (small blemish on left boot, pictured) Waterproof rubber upper and leather shaft Soft flannel lining, cushioned foam footbed and 200-gram Thermolite® insulation Dual pull tabs and elastic gores help get them on and off with ease Slip-resistant rubber outsole provides great traction on both wet and dry surfaces Spot clean. Imported Join the migration. Our waterproof duck boots are an equal blend of functionality and fashion. We designed them with a waterproof rubber shell and 200-gram Thermolite® insulation to keep your feet warm and dry no matter where you fly. Then we took it a step further and lined them flannel for an extra dose of coziness. Finally, to make them super easy to get on and take off we added dual elastic gores and dual pull tabs, too. Definitely duck boot 2.0.