I used to like the Sperry flip flops, but they are kind of pricey, they don't last forever, & they keep changing the styles with gradual reduction in quality. I tried a pair of West Marine sandals, but the traction wasn't so good. I agree with Gene that Reef makes some good ones. They also make lower end ones that hold less interest for me. Surprisingly, I have found some fairly good ones at Walmart for around $10-$20 recently. The $1 specials are disposables. The $5 specials only last for a few weeks, & don't have a deck grip bottom. Some of the $10 ones there are on par with the $45 ones from Sperry. At this time, I have Reef, Sperry & $10 Walmart specials. I rotate between them. On boats below 24 feet, I usually sail barefoot. On larger boats, I usually wear boat flops, unless it's really clod out, then I switch to boots. I do also have a few pairs of boat shoes, different types of Sperrys, Air-Siders, Crocks, etc. I only wear them occasionally.