If you have ever worn a cast, you know how annoying they can be. They don’t allow your limbs to breathe, they can’t get wet, and if you have an itch, forget about it. That’s why a team of Colorado-based entrepreneurs has developed a 21st century alternative that’s both comfortable and protective. The process starts with the patient getting a 3D scan done on the body part in question that is then used to create a custom-formed lightweight cast made of a strong thermoplastic. The cast can be made in either one complete piece that’s simply slid onto the limb, or in a two-piece design that can be taken off. Best of all, wearers can bathe, swim and scratch itches while keeping the limb immobilized and supported.