I love the Dia-band. Helps keep my CGM on when I’m out hiking in the sun. I also love to wear it at night when my CGM is starting to fall off because it’s at the end of it’s 14-day cycle.
Like the other reviewer, I ordered the wrong size because of the sizing chart, but hadn’t saved my receipt. Once I ordered one size down, everything was fine. I wear the seam on the outside of my arm, and have no problem.
I measured my arm tops carefully, and order the prescribed size. BOTH fit too tight, and as a result slide down, rendering their "protection" moot. Being tight, both also induced nerve discomfort down the inside of my arm, when placed with the middle over my sensor. This I believe is because the seam holding the piece together sits right above that nerve, which runs the length of the inside of my arm. Expensive and after only two weeks, already no longer in use.