I have some mobility issues so for someone who has worn "flip-flops" for over 60 years, these provide the structure with the upper soft but tough band than holds them well to my foot. The lack of a magnetic system for the bladder tube wasnt an issue for me since Im tucking it under the bottom from strap, where its not bothering me at all. If you order beware the size. Someone more limber may not have such an issue. I bought these as a "budget" alternative to start streaming videos online and was VERY glad I did. Because it?s getting cold outside Also the sling back is longer than the heel of the sole. Theyre really keeping my poor unfortunate unpedicured feet happy during Quarantine. The straps are very comfortable and not tight at all. You can watch this movie four times in a row concentrating first on the music, then on the dance, next on the visuals and finally on the story, which depicts the sixties as I remember them, growing up myself in the SF Bay Area.