The Miami Heat lunch box will be a hit among NBA fans and young basketball players. Made of 100% vinyl, this soft lunch box is a great option for kids. Vinyl lunch boxes are better at keeping the foodís temperature than rigid lunch boxes, making them popular with kids, who usually donít need a rigid box to keep their food un-crushed. The Miami Heat lunch box is great for carrying snacks to practice or lunch to school. This NBA lunch box zippers open and closed.