How in the world do they stay on your feet? I've looked, believe me, but can see anything holding it on the foot
This is what I found on their website
How do the sandals stick to your feet?
Down-Unders have a special adhesive built into the sandal that is designed to stick to your skin, but does not come off on your skin. Just step onto the sandals and go! No tan lines, no hot feet, no blisters, or anything between your toes! All the comforts of being barefoot without the pain! They are completely reusable!
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How long do the sandals last or stick?
The topless sandals will stick to your feet until they get too dirty. When this happens simply wash or scrub the sandals with soap & water, let them air dry, then they are ready for the next use. Remember your feet MUST be clean & dry, no dust or oils on feet & the sandals must be clean & dry.
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How do you take the sandals off?
Simply peel the sandals off.
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Do the sandals feel strange on your feet when you are wearing them?
They feel strange for the first moment. Then you don't even notice them on your feet. You have all the comforts of being barefoot without the pain.
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Can you wear the sandals in the shower?
Down-Unders are not designed as a shower shoe but yes, you can wear them in the shower. If you need to wash the bottom of your feet, you will have to step back onto dry sandals with clean dry feet. The sandals are designed to be worn where you would like to be barefoot: Any indoor or outdoor activity, at the pool, in RV parks, around the house, walking the dog, getting the paper, and on vacation.