Glasses are handy, versatile devices. They can be used for different things such as reading and improved sight. You can even use them to protect your eyes. Beyond protective functions, though, glasses are also used as fashion accessories. But there is one problem with using glasses; they tend to slip. This could make for an uncomfortable experience. There is, however, a solution. This adjustable neck strap for glasses is precisely what you need. You can adjust the strap length to make sure your glasses are a perfect fit for your face and neck. They won't slip off. Convenient, right?