With this Welly® traveler set, you can enjoy having two of the Welly® insulated bottles or give them as a gift set to a friend. This bundle includes two bottles that are made out of a stainless steel material with copper insulation. The bottles feature a double-wall construction with vacuum insulation to keep drinks hot for 12 hours and cold for 48 hours. Each bottle is also coated with a durable powder layer and a natural bamboo wrap. Give this bundle set as a much appreciated gift this holiday season.