holster for z30 commuter case??

has anyone tried fitting a z30 with a commuter case in to a defender-type (or seidio spring clip) holster? I assume it would have to be a holster designed for another phone (ie galaxy s5, etc). I do not want a pouch-style or leather holster. And i would prefer not to have to use the defender case because it is too bulky.
It is almost impossible to find any of the Z30 cases in store to try them out. My only options appear to be ordering online and i don't want to have to pay for shipping to return items that won't work together.
Any help would be great.
Thanks.

Hi there! Yes I agree with you, not many choices for the Z30 unless it's online, and even then it's rare.
Read this forum, there might be something there that someone has posted about; :BlackBerry 10 Accessories - BlackBerry Forums at CrackBerry.com