When using it for the first time the sensations are strange, but after swimming with it 3 times, it becomes a lot easier and after several uses, I can tell you that this tube is ideal for long technique sessions or breathing control. [video_post] Its use for different styles: Its use for different styles is a little complicated, since you have to adapt the tube to the swimming style that you will be doing, by adjusting the length and inclination. These changes can be made using the accessories that have been included. In my opinion, if you carry out the adaptations correctly, the tube can be perfect for all styles. The tube is really comfortable and is less noticeable when swimmin...