Includes S, M, MW.  In order to determine which size will work the best for you over the long term you'll need to try on different sizes.

This gives you the opportunity to figure out which one will be the most comfortable and seal best to get ZERO leaks and maximum therapy.

All three are brand new, never used.

I've been a 100% E-bayer since 1989 so you know you can purchase with confidence!