Do you wear a wetsuit when scuba diving in warm water? If you do, what style and thickness is it, and do you rent or bring your own? Many divers don’t wear a wetsuit when diving in the tropics, and there are many reasons why divers may choose not to wear one. But the majority of scuba divers in Thailand wear some kind of exposure suit. Standard rental wetsuits in Thailand tend to be a set style & thickness, mainly due to cost & convenience.