I owned a Gul non breatable suit for 2 years and I would be fine when it was cold. When it is warm or if you are wearing too much under the suit you sweat and get wet... defeating the purpose of a dry suit. I recently purchased a Kokotat gor tex breathable suit and got a relief zipper and gor tex socks with it. I will NEVER ever go to anything else. I have worn this in 75 degree (only 45 degree water) weather and taken it off without breaking a sweat. The rest of the local high school team came in all sweaty and complaining. The relief zipper is even more convienent. No more taking the whole suit off to go to the bathroom. If you go to www.kokotat.com you can see the different suit options. I believe the suit with the zipper and gor tex socks is $809 but a few dealers offer discounts.

I use this suit in Rhode Island and Connecticut. I even used it at Spring Fever in Georgia. It has been great for temperatures from 20 degrees to 75.