But that’s a thing with all carbon-plated shoes. You get 200-300km out of it. They are usually only worth it, if you run around a sub-3 marathon. It can be worth it for shorter distances but you should have someone…
E-Readers is wrong. The study used as a "light-emitting" book an iPad (p. 1235). So it is tablets and smartphones. It is not even clear to me if a Kindle Paperwhite would fall into the category.
But that’s a thing with all carbon-plated shoes. You get 200-300km out of it. They are usually only worth it, if you run around a sub-3 marathon. It can be worth it for shorter distances but you should have someone…
E-Readers is wrong. The study used as a "light-emitting" book an iPad (p. 1235). So it is tablets and smartphones. It is not even clear to me if a Kindle Paperwhite would fall into the category.