Material 5 stars
Buckle 5 stars
Shape 3 stars
So the rating should really be 4.5 stars.
I really wish they made the straps curve where they connect to the watch.
Then this would have been the perfect strap ...
Compare with the $50 FKM strap that hugs the hand much better:
This is (or should be) the standard by which all other rubber straps are judged. It is just perfect in texture, flexibility, and utility. The only complaint is that it smells... rubbery. Life-hack: Put it in a baggie with a vanilla-scented strap (Bonetto) for a few hours, and it'll pick up the scent like a PB&J in a lunchbox with a banana. The buckle was a bit flashy for me, as I was putting this on a new Marathon Steel-Cased Navigator. Uncle Seiko to the rescue, because he sells bead-blasted 18mm buckles.
Very comfortable, luxe rubber strap. Works well on a range of watches. Shown here with the Fluco deployant strap, which is a great combo. And of course Mike's service is always impeccable.