Neoprene Oversuit Cuffs
An effective way to keep hands warm in wet sections of cave. Close fitting and long enough to form a seal over the cuffs of an oversuit, these come into their own in wet crawls and pitches.
The radial artery is closest to the surface at the wrist, so reducing heat loss here is a good way to feel more comfortable.
Because the neoprene cuffs are not attached, they can be taken off in sections of drier passage, or when constant rubbing of the neoprene on bare skin could become uncomfortable, such as long, drier pitches.