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With a Vibram® Hero outsole and the Adaptive Hero System, the Thunder GTX offers the highest levels of comfort, stability, grip, and protection of medium difficulty hiking on mixed trails. Developed for the Thunder, the new Adaptive Hero System acts with each step, ensuring stability and cushioning on different surfaces while giving mor
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Very pleased with the performance of these boots. This is the second pair I bought and the last two months. I love the first pair so much. I decided to get a second pair. I’ve put approximately 125 miles on each pair. Just ordered a pair of women’s, for my girlfriend.
She was so Impressed with mine, she decided she should have a pair as well.
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Marlin · October 24, 2026
I should have got wide fit but too late now as I've been hiking every day with them,hopefully they will stretch with time,not as comfortable as my Merrills which I just wore out my 2nd pair of them.
I hike alot I challenging conditions,I'm not sure yet if I'd purchase another pair of Z's
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Peter · October 29, 2026
On time delivery, nice comfortable light boot - time will tell how they feel once worn a few times. Nice looking and feeling boot out of the box though.