They are a new addition to our clear view line of insulin pump cases. These are a soft spandex case that is approx 5 1/2 inches wide by 3 1/2 inches high. A clear view window allows you to see through the case. A great case for your insulin pump, sensors and more These cases are closed by velcro, have a 2nd inner pocket, belt sleeve with a web belt. These insulin pump cases are a smaller case that keeps the pump from moving around in the case. So if you are looking for an insulin pump pak, insulin pump case, insulin pump pouch or pumping gear that is comfortable yet fashionable these are what you want.