LAKOLE Zipper Design Platform Black Side Gore Boots - Color: Black - Design: With Zipper - Sole Type: Platform - Style: Side Gore Boots Size L. The zipper does not open. Both sides are elastic, so you can easily put them on and take them off as they are. Worn only once. They are quite heavy, so I will sell them to someone else. I think the weight is similar to safety shoes. Thank you for looking.