Damselfish
Contributor
As you might gather from the differing opinions, you simply have to find out the water temp for the time of year in a given place and know your own comfort level to decide what you need. People that live in colder places or dive colder waters will typically want less than people who live warm places. I've dove in the FL Keys in a t-shirt or lycra skin for multiple days when local divers were complaining of freezing in their 5mm.
If money's no object, you can always get a wardrobe. While it's true you can use something thicker and let water in to cool off once you're in the water, keep in mind you'll also be hotter gearing up. Personally, I dive in warm water to get away from wetsuits as much as possible, and I wouldn't want to use a 3mm where a 1mm or less would do. And I opt for a thinner fullsuit instead of a thicker shorty - you lose some heat from your legs too, and there's alot to be said for covering up against stinging critters, random bumps, and even sun and wierd tan lines. Quality suits are nice but with the .5-1mm suits I don't think brand and fancy neoprene is as important. Beanie type hoods (cap with a chin strap) are good for some extra warmth without being constricting or taking much space.
I used to prefer front zip because rear zip looked inconvienient, but then I got a rear zip suit and found it wasn't a problem at all.
If money's no object, you can always get a wardrobe. While it's true you can use something thicker and let water in to cool off once you're in the water, keep in mind you'll also be hotter gearing up. Personally, I dive in warm water to get away from wetsuits as much as possible, and I wouldn't want to use a 3mm where a 1mm or less would do. And I opt for a thinner fullsuit instead of a thicker shorty - you lose some heat from your legs too, and there's alot to be said for covering up against stinging critters, random bumps, and even sun and wierd tan lines. Quality suits are nice but with the .5-1mm suits I don't think brand and fancy neoprene is as important. Beanie type hoods (cap with a chin strap) are good for some extra warmth without being constricting or taking much space.
I used to prefer front zip because rear zip looked inconvienient, but then I got a rear zip suit and found it wasn't a problem at all.