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I also have a bit of a band collection with 2 sport bands, a leather loop, an official apple link bracelet and a 3rd party link bracelet in a different style (not an apple knockoff) and IMO the leather loop IS BY FAR the most comfortable one I own. I was hesitant at first bc it felt like plastic in the store but I figured with a 14 day return policy I might as well give it a try. After it gets broken in it feels like a premium leather and even smells like leather. After I decided I was keeping it I used some Obaneuf's Leather oil and its soft as a babys bottom now and looks even better than the day I took it out of the box.

Buy the leather loop, you won't regret it!

Couldn't agree more with that - just got my leather loop in black to go with my space grey sport. Very nice looking - though I was having second thoughts after seeing the loop in blue. Just looked a little "young" for me - I'd rather go with the classic dark/dark combo.

I've got the pad & quill leather strap on order, a space gray-esque knockoff link band and the black sport band.

I'd have to say that at this point, I agree about comfort - the leather loop is tops, followed by the sport band for me.
 
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