I was applying Chelsea leather food to my adidas copa mundial soccer cleats yesterday and had a similar "I use shoe trees for my dress shoes, why not my cleats/sneakers?" moment.
For years, I've even stuffed a couple of sheets of Bounty paper towels inside each boot to absorb sweat after I play without it ever occurring to me that a shoe tree might be better. (From what I understand and have seen, if you don't stuff the cleat to absorb sweat, the sweat causes the kangaroo leather to separate from the bottom of the shoe [sorry don't know the technical word for the "bottom"]). The shoe doesn't fall apart but the separation the sweat allegedly causes leaves enough room for dirt to wedge itself in between the leather and bottom.
Anyway, I'm curious if there's anyone else who wanted to chime in on the shoe trees with sneakers/cleats issue. Before I thought of trying this forum for this question, I searched on the internet for copa mundial shoe trees and sure enough adidas had once made shoe trees for the Copa in honor of the shoe's 25th anniversary w/ the special edition package (see links).http://www.soccerpro.com/images/0118...25_stretch.jpghttp://www.soccerpro.com/Adidas-Copa...ary-Set-p3188/
Thanks in advance for any input!