Unfortunately, I can't say anything about semi-open.
They are definitely suitable for sports. They fit surprisingly well. They don't feel like it. I don't know if it's the weight, but I hardly notice them in my ears.

Hello
I am very disappointed with the product. The sound is way below that of the AirPods Pro 2 and the noise cancelling is pretty bad. It sits well in the ears but the sound is not balanced and there is a big lack of bass.

hello

i am very satisfied - are very comfortable to wear and great for phone calls or video calls.

I've just bought them. I find the noise cancelling very disappointing. You can hear surrounding noises. They just seem to be slightly attenuated. I've just bought the jabra elite 85T, which I don't have at hand to compare, but I have the impression that I hear a lot more outside noise. I'm going to test them a bit more, but I'm very reluctant to give them back. This is a personal opinion, of course.

I have not noticed any environmental noises so far. In contrast to other plug-ins, they sit very ideally and firmly with me, which amazed me.
Very good material, workmanship and sound. Just Jabra