Hi Dale, I have use a couple of different dry suits and have seen many others. I currently dive in a U.S.I.A dry suit. I previously had a Harvey’s dry suit. Two really different suits, Harvey’s was a crushed neoprene and the U.S.I.A. is the packed clothe style. The Harvey’s was a back entry and the U.S.I.A. is a front entry. Both require undergarments of some style. The Harvey’s I think was a tad bit warmer but had leaking tendencies, which is not desireable in a dry suit. The U.S.I.A. is a bit more comfortable and the front entry is easier to use i.e. entry and zipping up unassisted. The good point also with the U.S.I.A. suit is that it is basically a custom made suit for the price of a production suit. Also I would recommend going to a weight harness system as opposed to weight belts or weight integrated jackets, personal taste on that. I hope this helps.