Using the first layer underwear with such suits is essential to avoid skin sores from perspiration, fats etc. Also remember that a dry suit by virtue of being sealed offers more warmth than a conventional two piece suit. If you wear too much underneath such a suit heat exhaustion can be a serious problem. The ideal is a breathable one piece suit designed to meet the EEC draft for a Constant Wear Suit. The suppleness of the material coupled with the practicality of design make it the ultimate suit to wear in poor weather.
Cost is always a consideration.
7 wind and a lumpy seaway. It is then appreciated that there is no substitute for good under and outer wear. When considering your programme of clothing, bear in mind the importance of keeping the weight down and retaining maximum flexibility. DO NOT purchase close-fitting outer clothing as this reduces flexibility and adds to the build up of condensation. Remember, stamina is reduced by wearing heavy, stiff clothing.