Varna Boots & wellies Blue available in size 3.5K|4.5K|5.5K|6K|7.5K|9K Infants' Naturino Varna ski boot, in leather and textile, with round toe, non-slip plastic sole and lace fastening on the calf. With removable insole. The width of the shoe in size 21 is 3 inches. Put these boots on your baby's feet as soon as the weather turns cold and avoid cold toes! The chunky, non-slip sole and soft, warm lining of the upper makes these perfect for wet weather.