Aquasphere swim mask - Vista - Clear/blueThe absolute perfect swim mask for outdoor swimming and triathlon must be said to be the well known Vista from Aquasphere. An incredible number of swimmers already use this swim mask with great success today. Once you have tried a pair of Vistas, you will quickly understand why it is the most popular on the market. It is well executed, which is why it is not surprising that it is used both indoors and outdoors and performs optimally in both