I've owned many pair of Reefs and have always been impressed. My last pair were the least expensive leather slide and they ended up lasting me for a solid 10 years; camping, surfing, water, mud, what ever.
This time I decided to get the J-Bay. Unlike the Fanning, these do not have a bottle opener on the bottom. I've found that the opener ends up getting crushed and deformed after walking around rocks and pebbles, rendering it useless. Good idea but I figure; if you can't figure out how to open an adult beverage without an opener, then you're probably aren't "old enough" to be drinking.
Bottom Line: These are way more comfortable, quick break in, nice leather and look better with jeans and shorts.