There are many reasons why we’ve created the vacuum system from all holds that we believed we had to do.

Using our Hollowback system, we have reduced twice its weight, so the installation of this will be much easier and the route setter won’t have to be loaded with such weight.

Another advantage is that we have reduced the price because of the large amount of material we save. Finally and most importantly, we generate less waste, thus having the same hold with much less material, so the resistance remains as extremely compact.