Anyone who has ever used a shoe tree knows what a difference they can make.  If used regularly, a shoe tree will extend the life of your shoes considerably by minimizing the horizontal wrinkles that naturally develop as you walk around, making them look new(er) long(er).  As an added benefit, they hold the shoe rigid making it much easier to clear, polish and shine the shoes.  These trees are made out of genuine cedar wood, which gives my closet a great, manly outdoorsy smell, and which counteracts any occasional (gasp!) bad smells that might be coming from my shoes. :)  These shoe trees are made very well, use solid cedar on the crown, and are sized specifically for your shoes.  These trees adjust within about a 3-4 size area, so be sure to order the one that corresponds to your size feet.