Promate Barracuda Blunt Tip Titanium Scuba Diving Knife (4 1/2" Blade) - KF529

This is exactly what I was looking for in a dive knife.

Great dive knife! Maybe mine is the "new" version of this knife but it came super sharp, doesn't rattle in the sheath and has the new heavier rubber straps. Perfect size and feels good in the hand. Excellent value!
About the new straps, when I first looked at them I thought they were connected upside down. It took a few minutes messing with it before I became smarter than the strap and figured it out. I was looking at pictures of the old version of this knife instead of the new version which clearly shows that the rubber "ridges" go against your leg. Duh!