This is an absolute must for all outdoor adventurous people. The hands are always one of the first body parts to go cold because of the exposure. The Zippo hand warmer combat the chill and with its sleek and compact design it fits easily into pockets, gloves and pants without the bulk of other warmers. The hand warmer uses Zippo premium lighter fluid to produce more than ten times the heat as traditional models and lasts for up to 12 hours. It comes with a convenient filler cup and warming bag.