Posted on Sep 22, 2008 under scuba wetsuits |
Scuba wetsuits are worn by scuba divers to keep themselves warm when they are in cold water. They also protect the diver from sun exposure, jellyfish attacks and coral. They can also be worn by snorkelers and windsurfers.
Wetsuits trap a thin layer of water between the skin and the rubber of the wetsuit. Your body heats this water which insulates you against the cold and helps your body retain its heat.
To work efficiently and provide good thermal protection a wetsuit must hug the body forming an all over seal, particularly on the torso. It should be a comfortable and snug fit and not sag when worn. Water will escape from between the suit and the body if the wetsuit is too loose a fit, taking the bodys heat with it. Water retention is aided by the flexible seals at the suit cuffs.
Modern wetsuits are mainly made from thin neoprene, a stretchy synthetic rubber that is extremely durable, or a combination of neoprene and lycra. These are measured for the conditions by their thickness, basically the colder the water the thicker the neoprene required. Scuba wetsuits made of dense neoprene offer great warmth and protection. Neoprene comes in different thicknesses, from 2 mm to 6 mm.
A thicker cold water wetsuit will be required if you are diving in particularly cold diving spots, or if you are descending to a depth of 30 feet at least. The trade-off in terms of restricted mobility and better insulation was in the past a major consideration to the wearing of thick wetsuits. However, thanks to modern technology, wetsuits designed with a higher torso thickness are now just as flexible as wetsuits designed with lower torso thicknesses.
The choice of wetsuit you make can affect not only your recreation, but also your life. A diver has to be very discriminating as to the quality and material that goes into the manufacture of a wetsuit. You just can’t afford to take any chances with poor quality ill fitting scuba wetsuits.
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Posted on Mar 19, 2009 under Scuba Diving, scuba wetsuits |
scuba gear
Dry suits are the key to diver comfort in cold waters and extreme situations, so when choosing one, you’ll want to research the different options before you get to the dive shop. The last thing you want is to walk away with a $3,000 suit you’ll never use or a membrane suit that will leave you trapped underwater and freezing.
Wet suits are great for warmer water dives because the neoprene material allows water in and traps it against the body, which then heats up to your temperature and insulates the body. The general rule of thumb for wet suits is: the tighter the fit, the better. Otherwise water will just keep entering and exiting the suit, without time to heat up against your body. You can choose from 2 – 9mm thicknesses and from shorts or full-length styles. Shipwreck or cave divers are best off purchasing full-length diving suits with toughtex neoprene, which provides an extra layer that’s snag-proof. You’ll want your suit to hold up in the tightest squeezes and off the sharpest coral. However, for diving in water less than 60 degrees Fahrenheit, dry suits are the only sensible choice.
Dry suits can be made out of several different kinds of material: neoprene, membrane or a hybrid of the two. Neoprene is made out of synthetic rubber and is the most rigid type of suit and though difficult to get on, will keep you the warmest. Another advantage to neoprene is that it’s less susceptible to rips or tears and will maintain functionality and buoyancy if a rip were to occur, making it perfect for those cold water wreck or cave diving expeditions.
Membrane shelled suits are generally the most comfortable — made of thinner nylon or vulcanized rubber material, waterproof and breathable — and are recommended for divers who will spend a lot of time out of the water on the boat. Because the material is thinner, divers will need to wear an under layer made of polyester or another tight-fitting material. The latest models are hybrids with a rigid, overall-style neoprene bottom that supports proper kicking and a looser-fitting membrane top to allow easy arm maneuverability.
You may be shocked at the cost of buying new dry suits. The cheaper ones go for no less than $500, while the more high-end diving suits can cost as much as $2,000. Lessons usually include wet suit rental or offer them for a small fee. If you’ll just need a dry suit for your vacation, you can rent them for $40-$50 per day. Some dive clubs will offer specials, like buy one day get the second half off or weekly rentals for as little as $30.
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