Same! I’m not a super camper but when it drops below 50F it is time for that. For nursing hot water around the fire we made coozies out of thermal cloth bought

Same! I’m not a super camper but when it drops below 50F it is time for that. For nursing hot water around the fire we made coozies out of thermal cloth bought at a craft store and boat seat covering material. Pre cut the shapes then handed them out to kids who then taped them together around the nalgene with fun patterned duc(k|t) tape