I have worn a few types of Crocs and only once did I get a blister and I realized later that that was a narrower style...don't know what its called but it has a white "sneaker-ish" band around the bottom that looked sporty. The clssic types are great.
Last trip I wores only SANUKs...a pair of their Yoga mat flip flops and the "pick-pocket" style slip on! The most comfy shoes I own!!! Cuter than crocs but just as comfy!!!