Skechers Modern Ultra Flex 2. 0 Women s Boot Protect against the chill in the Ultra Flex 2. 0 women s Boot from Skechers Modern. Featuring a micro leather upper with a knit collar and chenille lining, this Sneaker Boot is made for cold weather. The Warm Tech Memory Foam insole helps retain heat while the anti-slip outsole provides flexible traction in wet or dry conditions. Synthetic upper Lace-up closure Knit collar Memory foam insole Traction outsole Color: black