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Why are these holes in sneakers?



Probably all noticed, in its sports shoes, these two small holes and wondered, for what they are. Some used them as best he could, but these guys have shown how necessary! This is a great invention that will make your exercise more comfortable. Since shoes are not subside even a centimeter, will not rub and it will be easier to deal with.
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So why do we need these holes in sneakers! I never would have guessed ...
...
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...
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...
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...
Always I wondered why this part of the Chinese chopsticks ... So that's it!
...
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...
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