Question about Jabra Elite sport

On the one hand, it is advisable to choose the right foam or silicone plug for one's ear size and, on the other hand, the right size of ear hook to fix it on the inside of the ear. If that doesn't help, then it's going to be difficult. I can well imagine that it also doesn't work once. That's what happened to me with the Apple headphones. But since Jabra supplies 6 (2x3 different plugs and 3 different earpieces), there should be something suitable for most people.