The Lulus Windal Black Square Toe Mid-Calf Boots is ready to make every 'fit a chic moment this season! Smooth faux leather shapes a squared-off toe that meets a 7"" mid-calf shaft with a 10"" circumference and a curved topline. A 6"" zipper at the instep and a chunky block heel complete the look! 2. 75" wrapped block heel. Cushioned insole. Rubber sole has nonskid markings. ALL MAN MADE MATERIALS. Imported. Lulus | Windal Black Square Toe Mid-Calf High Heel Boots | Size 6.