Tailoring for Bear Skin Potion Bag

[Matthalas Winterheart]

I need confirmation on whether or not " Grizzly Bear Skin" and " Thick Grizzly Bear skin" are one and the same.

I know they obviously have different titles, but Im trying to make my alchemy bag, and the thick skins are the only thing Ive seen drop.

I combine that with the silk cord, and its telling me the items cannot be combined together.

I've been working for two days trying to get both tailoring and brewing up to do this...And now I get this message. Getting frustrated. Any help would be much appreciated. Thanks