Is this going to be less warm than a straight 5mm? I'm going to be around Puerto Vallarta in January, with temps around 65 f. I'm deciding between this one and the Cressi Lontra - any thoughts? Thanks!
Neither a straight 5mm or a 5/4/3mm will keep you comfortably warm in 65 degree water, at least not on a standard 50min dive. You might be OK for 20 minutes or so, but not the full dive. You would be better off renting a full 7mm farmer john suit, and supplement it with a hood, and possibly gloves.
I dove this wetsuit in Bonaire for 22 dives in 8 days. I found it warm enough and flexible enough to be comfortable in for entire days. However, the water temp was around mid-70's, I believe. If you are going to dive a lot, you may want to go full 5mm.
Greetings James! I've owned and used the Bare 5/4 for several years now and really like it. As with any wetsuit fit will probably effect the overall warmth more than an extra millimeter on the 4mm panels on this suit. The Bare suit also has seals on the lower arms and lower legs which helps limit the movement of water in and out of the suit to increase heat retention; however, if both suits fit equally well I am certain the straight 5mm suit is going to be warmer.
That said, in the temperatures you are talking about I would personally add a decent hooded vest and 5mm booties to supplement either wetsuit. In fact I might even consider moving up to a 7mm at such temps especially if you will be doing repetitive dives...I guess I can't take getting cold after too many years of freezing my butt up in Alaska. Cheers!
i dont think you will notice any difference! however i dive in cozumel in march and i was always cold during the 2nd dive.so i bought a new BARE ELASTEK 7mm full suit and i am very comfortable now