Protect the finish of your 42mm Apple Watchâ„¢ using this Clear Soft TPU Case from Monoprice! This case is made of Thermoplastic Polyurethane (TPU), which combines the advantages of a soft silicone case with the protection of a hard polycarbonate case. It is flexible and is easily installed on your watch. It has cutouts on the side for the Digital Crown, a cutout on the back for the heart rate sensor, and a button extender over the right side action button.