I replaced a similar pair of Teva's that I had purchased over ten years ago.  These shoes are comfortable but run a bit small (I ordered a 14 and they're a bit tight, normally I can wear a 13).<br /><br />The straps are secure, and when I used them in the river so far I noticed a pretty good grip.<br /><br />Based on the longevity of my previous purchase, I am expecting these to be a good value.  The only reason for the 4 star is they're not as comfortable as my previous pair of Tevas.