Flexisuit, warm is clever 
Flexisuit is a new and revolutionary idea. Flexible and durable enough neoprene, tightly designed around your body and will expand when you add more underwear, will still be tight and prevent air movement, will be soft and flexible enough not to restrict your movements and will prevent squeeze. A bit like a thin and watertight wet suit with sealings.  
 
And Flexisuit is just that. Elastic and flexible enough to be a tight fit regardless of what you carry under. Tight means less risk of air movement, no need to master dry suit use and less risk of squeeze. Use less underwear for warm waters and more for cold. The multilayer principle as learned in the boy scouts. Simple and effective. And make sure you use wool for underwear like the commercial divers do. Preferably Merino wool. Warm even if wet and found in the nearest sorts store at reasonable prices. 
 
Poseidon Diving Systems Ltd, Mill Lane, Alton, Hampshire, GU34 2QG. United Kingdom -  
Tel: 01420 84300 Fax: 01420 83522 Email: sales@poseidon-uk.co.uk