"Great shoe, bad strap" - Review of La Sportiva Exum River Canyoneering Shoe

I bought these for an everything shoe: canyoneer, hike, ultimate frisbee, etc. The shoe fits my narrow foot well, the rubber is super sticky, and they drain very well. I've been on a couple hikes, a backpack trip, and one canyon. My one complaint is that after limited use, 2 of the plastic pieces that hold in the strap snapped. Seems like the plastic should be beefed up. Straps aren't needed unless in thick mud or strong current. Other than that the uppers seem really tough.
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