This collar is stuffed; not inflatable. You can adjust the inner neck size for a custom fit, by using the inner elastic toggle switches. Both sides stay secure and closed thanks to the outer velcro wraps that connect from one side of the collar to the other. There is a leash attachment inside the zipper. This leash attachment can be wrapped around both collars using the silver rings. The outer collar is removable and machine washable for easy cleaning. Help keep your furry friend's surgical site protected and clean after treatment by using this Comfurt Collar Dog and Cat Recovery Collar! This easy-to-use collar is designed with a tough, water-resistant polyfil core that is covered by a micro-plush cover for added comfort. Plus, the plush cover is completely removable for hassle-free cleaning every single time! This collar is available in multiple sizes and is easily adjustable to fit canine companions and feline friends of many breeds and sizes. Questions? Leave a comment below!