I am writing this review after I confirmed that my first pair of these boots are bad with manufacturing defect. After reading all these excellent reviews about the Altitude IV, I purchased a pair with high expectations. However, my first pair had a defect in the left shoe. It lacked arch support and it was uneven on the bottom which made my foot hurt. At first, I thought it was just the insole which I put in another pair on top of what is in the boots. However, it did not help, and my foot continued to hurt. Today, I went to a retail store and tried out another pair of the same model and size, and the arch support is great in both feet with proper insole cushion. I promptly exchanged my boots.

All in all, my point is that I am disappointed with Hi-Tec for making bad shoes and still allowed them to be sold. 5 star for these boots but 1 star for the poor quality control.