I need the HD2 to stay naked since I'm using a Brodit car craddle ; I also need my HD2 with me all the time, everywhere...
So I'm using only belt holsters.
I had to change my two years + old worn one, and I found this one to be the very best I ever had :
Strong belt fitting (both closed loops and leather padded metal hook, but I actually slip the belt through all of them at the same time), the phone it held snug (but not too tight either) in a soft fabric padding and the magnet flap is very precise, and flexible enough to self close effortlessy.
Really 100% recommended for people looking for a holster.
It's actually a generic holster pouch for similar sized phones : you'll find exactly the same item, at the same price, for European HD2 (as mine), HD7, Galaxy S II, etc.
Of course, I'm pretty sure it's not real leather. It's "synthetic leather", whatever it means... Such as my car's seat, that actually shows the same kind of wearing after 10 years as my previous holster, but well... You also pay for what you get.
I did buy a real leather holster too as I was in a hurry and wanted to have a spare one, but the flap lacks flexibility and has to be closed by hand or it will stay open (the magnet lacks strength too). Maybe it will cure over time, but it's not the one I'm currently using. I'm so much pleased with the one I cited above at the moment that I don't feel like changing at all.
Maybe I'll write a review for the other one as well when I'm using it...