Knee-High Heeled Boots Graceful and fashionable, zipper over knee boots are easy to put on and take off, and their fit adds to their attractiveness and charm. Outer material: Stretch PU Lining Material: Synthetic Outer sole: TPR Closed Pointed Toe Long Boots for Women Side Zipper Opening Elasticated Gussets Knee High Heel Boots Lightly Padded Insole SH3323