I bought these about 4 years ago and have probably worn them less than 5 times. Therefore, there is little wear on the heels and no flattening of the boa lining. They are mid-length and very warm! I usually wear a 23 in pumps and a 23.5 in sneakers, but these fit just right. The boa lining is packed in tightly, so they say there will be a little more room as they break in. UGG gray suede and fur-lined mouton boots for a comfortable fit. - Brand: UGG - Color: Gray - Style: Mouton Boots - Material: Suede - Lining: Fur - Sole: Rubber Thank you for looking.