have used the HotSnaps before, they truely are the cats ass for post- dive warming. Contact IceSelkie & DeepRN for a review on how they work in the water, as I belive they were using them while freediving.
there are some divers in Calgary that were experimenting with electric heating pads running off off canister light batteries,
Mossman :: Deep Technical Diving I belive Greg was involved.
your Alpaca still concerns me
