Leather shoes are just like your skin.  They can get dirty, dry out, or crack.  That's why it's so important to take care of your leather shoes and boots.  Regular cleaning and conditioning with some leather care products will greatly extend the life of your boots and keep them feeling comfortable.  To add an extra layer of protection to your leather boots or shoes, try using a water repellent spray or a cream/paste like mink oil or beeswax.  To spruce up your look and add one more layer of protection to your boots use a neutral or similar colored shoe polish.