I have a pair of the original Zs, and they are rugged and heavy. Great for getting out on the trail. Unfortunately, the sole started coming off so I was in the market for some new Chacos. These are perfect, but don't seem as rugged. The straps are thinner, but softer. The best part about these sandals is how light they are. They are perfect for roaming around the urban landscape. Fresh out of the box, I wore them for a whole day at a theme park and never had a problem. Excellent sandals!
This review was written in the old system and had content requirements that are different than reviews written today.