The ColdCan is modular, stylish, and keeps drinks cold, longer. Each ColdCan is made of PolyCarbonate Plastic and uses Cryogel, the same material used in spacesuits for thermal insulation. Features: Durable PolyCarbonate ConstructionFloatsFits most cup holdersCryoLok rings for modular snap-on attachmentsSpill-resistant lid and basePerfect for outdoor activities, beach, hiking, biking, pools, and backyard grilling.