1. Would like the pros and cons on them.
2. Which one is more preferred and why.
3. Which has a better seal of the 2 for an active lifestyle, as in sports.
4. And Info on comfort or lack of in the size difference between large and medium too, if possible.
I find bits and pieces of the info in others posts, but would like to see the feedback under one post before deciding between the two
Thanks in advance.