Are Reef sandals slippery?

I'm curious to know, have you ever worn Reef sandals before? If so, did you find them to be slippery on various surfaces? I'm asking because I'm considering purchasing a pair, but I'm hesitant due to concerns about their grip and traction. Do Reef sandals come with a special sole design that prevents slipping, or do they tend to be more slippery than other brands? I'd appreciate any insights or personal experiences you could share on this topic.