Heel measures approximately 1 inches.HIGH QUALITY - These baby boots are made of premium soft fleece upper, which is very comfortable and warm.WARM - Lightweight Soft Fleece Material, Keep Toasty and Comfort. You can also Layer Socks Under the Booties to Keep Your Little Ones Toes Warmer or more Snug Fit.EASY WEAR - Adjustable Closure makes Our Infant Boots Easy to Put On, Take Off and Adjustable, And Most Importantly Stable On Your Baby's Feet Wont be Kicked Off.CUTE & PERFECT GIFT - Perfect For Crawling, Walking, Playing, Going Out, And Sleep Etc.These Booties would be a Best Baby Newborn, First Birthday, Shower Gift.