Perfect for on the go, these acrylic cups are the most convenient monogrammed accessory! At 20oz, it holds just the right amount of liquid and is just the right size to fit into most standard sized cup holders. The lid is screw on and has a rubber seal that closes tight for spill proof handling. Each cup comes with a matching straw, making drinking on the go easy! The vinyl monogram is made of an adhesive and waterproof material. Because of its double wall make, it is suggested that this cup be hand washed.