You need to download it and save it to your Minecraft account. Getting the skin alone isn’t enough in Minecraft Java, though. These skins are entirely free-form and personalized if players wish. If you fit in the latter group, here’s a surprise for you: custom Minecraft skins. Some people are content with them, but others prefer to change their avatars into something else. You have Steve and Alex, the default skins in Minecraft – and that’s it. When you play Minecraft, there aren’t a lot of choices for avatars.
