Neoprene fabric is a closed cell foam which traps thousands of insulating gas bubbles in dry cold weather this glove will trap the warm air generated by your hand and keep you very warm neoprene fabric is water resistant in cold wet weather the glove will work in the same way as a surf wet suit as long as your hands are generating warmth the glove will trap a tiny layer of water against the skin and warm it up unlike other lightweight materials ndash eg a lofted synthetic down repl