I would like to use these for nightdiving, and am wondering if I should get something with more rubber on the bottom, or if these will be sufficient?
i think these will work fine.
These boots are fine for diving, day or night. What is more important is whether you are doing shore diving or boat diving. If shore diving, what kind of terrain you will have to walk across should be the factor for determining the type fo sole you want. My 2 cents.
It depends on the terrain you will be walking on for the night dives. These are very comfortable boots that are sufficient for walking on gravel, sand, and dirt. I would highly recommend them for all types of diving. I dove in warm Florida water with them as well as in cold quarry water. Mine tend to be a little short for my foot length since they do not come in half sizes.
I think the thickness of the sole would depend on the type of surface you're crossing to go night diving. I use the same gear night or day and these have an adequate thickness for my comfort.
The soft soles work as well at night as during the day.
The 5mm boots are great for night dives and seem to have sufficient grip. I don't walk on rough surfaces in the boots, though, so can't comment on your question directly.
adaquate rubber on sole for most diving
These boots are great,however have a lot of flex in the sole, if u plan on walking over rock or hard surfaces may be wise to get a thicker sole with less flex. Perfect for finning
These have been great and have enough rubber on the bottom for night diving!!
I am very satisfied with the quality of the boots. It would depend on the terrain of where you would be diving. I have only worn them on sand/dirt and wooden walkways and they were fine for that. The soles might be too thin for rocky terrain.