So my second pair of Chacos are about 5 years old, and I noticed yesterday that the lugged part of the sole (Unaweep sole) is peeling off from the toes of both shoes. Now, at 5 years old, that could be normal wear and tear, except that the pair I have that is 10 years old (with the less-rugged Colorado soles), that I continued to wear as my favorites after I bought the second pair, are still in one piece. The soles are extremely worn, but not peeling. I know I can get them re-soled, but I sort of wonder if it's worth it now. I'm kind of unhappy about this.