GUC Luoika Extra Wide Calf Knee High Boots 9.5XW Only worn a few times! See product details photos for measurement info. About this Item Size Runs Large. Extra Wide Calf and TRUE WIDE WIDTH knee high boots. EXTRA WIDE CALF: Please measure your widest part of your calf size and refer to the size chart in the picture, that will help you to order the correct size. The elastic bands and zipper clouser on the boots can help to have the perfect fit. HIGH-DENSITY MEMORY FOAM INSOLE: high-density memory foam. Surprisingly comfortable. LOW STACKED HEEL (Heigth 1.26 inch): Stylish Low block heel adds some inches to your look makes you to walk more stable. ELASTIC BAND/SIZE ZIPPER: For easy on/off and perfect fit.