Are the sleeves & leg cuffs finished with o ring or elastic to seal or are they just raw or sewn over?
Also please described the neck opening.
The wrist and leg cuffs appear to be "hankerchief hemmed" that is rolled twice and then stitched. There is no elastic. The neckline is also double stitiched and then a 2-3 "piece has been added to make the suit fit farther up on the neck. That small piece has a "raw" edge. Hope this helps.
The wrist and leg cuffs are folded over and sewn. There is no elastic or o-ring to seal. The neck opening is raw, as with many wetsuits. A good no-frills wetsuit that gets the job done. Comfortable as well and seems to be well constructed. Mine has lasted around 50 warm water dives over 5 years and still going strong.
There are little orings but nothing special. neck opening doesn't have any special seals either.
The wrists are sewn over and not a smoothskin seal. The neck has a 1" high collar that seals pretty well.
The cuffs are sewn over with nylon, but the neck is not. They don't have latex gaskets, but it's not intended to be a dry suit. The zipper is not waterproof either. The cuffs are wearing fine on mine after almost 4 years, but I haven't worn it much the past two seasons for a variety of reasons. The neck is starting to come apart from abrasion in front. The nylon webbing strap on the zipper pull came off once, meaning I couldn't get it off by myself, but luckily I had a friend who could unzip it for me. The fit is good on me, and has better range of movement than my shorty wetsuit at the arms. Definitely worth the price.
Elastic ring sewn over, no rubber seal on the 3/2
The sleeve and leg openings are finished with a nylon or polyester binding with double-row stitching. The neck opening is a neoprene collar ring (wet suit material) with raw edges that are very soft and do not chafe the neck.
They are finished with a thin layer of neoprene wrapped and stitched over (i.e., capping) the ends. It is not a tight o-ring like I've seen on some Mares suits, but is tight enough around the ankles and wrists to seal and the stitching is still holding. I have worn this on two liveaboard trips with about four dives per day (50+ dives) and it still looks and works like new. Hope this helps.
They have a "ring" finish, not just hemmed and sewn, but it isn't a real tight seal, either. The neck has a finish band of neoprene, but it has streched out on my suit (after about 100 dives).
Remember this is "wet" suit, the cuffs are snug but not sealed. They are sewn over. I have all NeoSport XSpan suits and cannot say enough about the quality, fit, stretch and looks. Try it, you'll like it.