We are avid scuba divers in Monterey CA. The wetsuit requirement for the 49 to 52 degree water temperature is no less than 8mm. We are also big into our photography so we spend a lot of time under the water very still while we shoot. The lack of "action" to photograph steady can cause the temperatures to creep up fast and get too cold to do that"last" dive. I reached online and found Robin with this wonderful selection and was able to order my full dive skin on a Tuesday and it actually arrived one day "early" in order to make it for our Charter boat adventure to the Channel Islands, Santa Barbara! We did 3 long dives and I was very. very pleased with my dive skin allowing me the extra warmth to do all 3 dives back to back ! It was under my Hollis 8mm the entire time I am completely sold on this product and will be ordering more in the future! Thanks for getting it to me "early" Robin..it was great!