Japanese construction boots (jika-tabi). Steel toe, thin and flexible minimalist soles (about the same as Vibram Fivefingers), and the split toe allows for toe spread (which improves balance on the job site) :
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Jika-tabi - Wikipedia
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Ninja Tabi Boots -
1 Pair Ninja Shoes Boots For Naruto Akatsuki Black Cosplay 11 Sizes | Fruugo SK