Synthetic and recycled polyester upper with a recycled polyester lining and rubber sole. Featuring a 1" heel and a 1/2" platform, these boots have a 16" shaft and an 18" calf circumference, perfect for wide calves. Closure - Adjustable toggle. Origin - N/A. These boots are waterproof and temperature rated to withstand -13°F/-25°C, ensuring you stay dry and warm in harsh conditions. Enjoy the comfort of a removable insole and the convenience of a round toe shape.