Baby's footwear is an important part of a baby's wardrobe. Two common types of baby's footwear are booties and bootees. Booties are soft, slip-on shoes that are usually made of fabric or leather and have a sole made of rubber or plastic. Bootees are similar to booties but have a hard sole and are usually made of leather or suede. Both booties and bootees provide protection for a baby's feet and help keep them warm.