Our high-tech device #vitashape has been accompanying the German #Tennis Player Yannick Hanfmann for quite some time now. Thanks to the great added value in terms of training optimization and nutrition in combination with the easy handling, vitashape is also in the luggage for the US Open. We are very happy that our #Wearable is so well received by the tennis ace. We will follow the matches with great interest and keep our fingers crossed for Yannick!