Aquavelvet
Contributor
Surfing wetsuits have a few differences that make them less suitable for diving. They are really just meant to b used on the surface, and are cut differently around the arms and neck for greater mobility and comfort. They also use a softer neoprene that will compress more at depth and lose its warmth. Better to get a suit at is intended for Scuba. Having said that, O'Neil makes some great suits for diving. Look for their Sector suits with the Firewall lining.
I do find that layering under a wetsuit is very effective for extending the comfortable temperature range. For warmer water, I'll bring a 1mm hooded vest to wear under my full length Bare Velocity 3/2mm to reduce the chill during the last half of a week of intensive diving. For somewhat cooler water, maybe down to 73 degrees, l use a Lavacore layer underneath my O'Neil 3mm. That combination, along with a Lavacore hood has kept me warm on 90 minute dives in the Mexican Cenotes.
Even a rash guard can add a little warmth when worn under a wetsuit. Other options could include a polyolefin top or full length rash guard under the suit. A base layer helps reduce water movement inside the suit, especially under the zipper, and helps more with warmth than one might think. Layers that are neutral buoyancy won't require extra lead to sink.
I do find that layering under a wetsuit is very effective for extending the comfortable temperature range. For warmer water, I'll bring a 1mm hooded vest to wear under my full length Bare Velocity 3/2mm to reduce the chill during the last half of a week of intensive diving. For somewhat cooler water, maybe down to 73 degrees, l use a Lavacore layer underneath my O'Neil 3mm. That combination, along with a Lavacore hood has kept me warm on 90 minute dives in the Mexican Cenotes.
Even a rash guard can add a little warmth when worn under a wetsuit. Other options could include a polyolefin top or full length rash guard under the suit. A base layer helps reduce water movement inside the suit, especially under the zipper, and helps more with warmth than one might think. Layers that are neutral buoyancy won't require extra lead to sink.