Once you install the dlc for Witcher 3 where is it found in the game? I am trying to find the armor

Where do you download it on GOG (without galaxy)?

The merchant you save soon after starting the game has it It should be available in your library, in your account. When you click on the witcher 3 icon, the DLCs should be listed under the installations files. Click on them to start the download

Nah, I figured it out. You have to "buy" them first for free, then they show up where you said.

I mean in game. Its not showing up in my inventory. I really want that armor for me and my horse

My mistake, I assumed you had already bought it It doesn't show up in the inventory, it's sold by the merchant