Flip Flap Backstraps for flip-flops (1 to Wear/1 to Share)

I have a tough time with sandals rubbing my feet. Love my comfy flip flops but frankly most times won't wear them because they fall off or I walk out of them. Decided to just try these and WOW! Wearing my favorite flip flops all the time now. The material is soft and allows just enough movement you totally forget they are on. Plenty of adjustability for comfort. I thought the extra strap would bother me but it doesn't, the logo overlap piece hides it. Easy to put on and take off. I haven't figured out why I would ever take them off.
I have to say something about the packaging...you get 2 sets of Flip Flaps each in a separate designer box. I'm not kidding when I say designer box, someone put alot of thought into how this box looks. Each set also has its own draw string logo carry bag. I actually went out and bought another pair of flip flops.

I was looking at other brands and came acorss this one. Surprisingly soft and comfy, 10 out of 10 will recommend others to get it! I put this on my addidas thong flip flop($15), and turned it into a barefoot sandals ($100+) lol. wont regret i promise

The simplicity, comfort, and quality of these straps are absolutely extraordinary! I procrastinated a few days before attaching them to my favorite flip-flops, and once I did I experienced instant comfort and security. I could literally run a 5k in my flip-flops now if I wanted to, and that's the type of secure attachment I was looking for. The bonus is the softness and comfort of the strap material. You really have to experience it.

I have a few sandals that I love to wear, but I can’t stand when I need to scrunch my toes to walk. These really help keep my shoes on my feet well. I think if you sport these with crocs, it would be much more attractive but in my case, I’m putting them on sandals they probably don’t belong on. It doesn’t really matter how you use them because these are really great to have! They’re solidly made, adjustable to a variety of different lengths and don’t chafe or rub the back of my heels. I’m really impressed by these and they've saved me from pitching a few pair of shoes!

Update to below review: I had to continue to loosen the Flip Flaps, as expected the rubber tension forcing the two thong between my toes was uncomfortable. I'm now at the end of the loop straps adjustment with just one hole secured by the double pronged doohickey on one side, two on the other. I now know why the two holes are highlighted: if you don't put the doohickey in these two holes, the FF branding additional rubber strap doesn't fit.
For sizes larger than mens' 10, the FF's will adjust but you won't be able to use the logo strap. I don't see a problem with this and expect that they'll be just as secure and comfortable without it. Since this product ships with two pairs, one could use the other doohickeys to put the logo strap on. They do look better with it in place.
I just moved my straps onto my Grundens which are much newer and will be my pseudo hiking shoe for my hot weather visit to a national park. I already had to adjust them one more hole longer, so now only one hole on both sides is connected maintaining the logo strap in place: this is as large as I can make them maintaining the logo strap. If this proves too tight, I'll be forced to forgo the logo strap or will have to pilfer the other two doohickeys from the 2nd set.

Original review: I'm a men's size 10. I put them on my well worn Reef flops guessing on which adjustment holes to use: I used the two highlighted holes as a starting point and then connected one hole short of full length. Do this on both sides of the Flip Flap. Felt great however I realized my flop was sliding backwards under my foot forcing my toes into the toe thong: too much rubber tension. I'd expect this to start to get uncomfortable after a short while. So I backed off one hole on one side only: perfect. Comfortable and does the job of keeping the flop attached to my heel. So I'm at one hole short of full size using the two highlighted holes on one side and full size w/highlighted holes on the other. For sizes larger than men's 10, just register the double pronged doohickey off of the highlighted holes.