http://www.kmedrysuits.com/Drysuit_info.htm The first drysuit made reportedly had a zipper that started at the back of the neck, went down around the crotch and back up to the middle of the front. Picturing that in my mind, it would seem that this zipper design would be very easy to put on -- a person wouldn't have to "roll" a suit on in any way. Are there any manufacturers who still make any type of suit with a huge (very long) zipper?