Eggs reflect the colors and markings which will be on the Isoling inside. Traits, however, cannot be guessed by observing the egg. Traits are passed down from parents. Common traits such as the long tail and standard ears are more likely to pass if one or both parents have the traits. A cool aspect of traits in Isomara is that over time hybrid traits have appeared. For instance, the Scorpio tail is a hybrid between a puff and a long tail, so if one or both parents have a long or puff tail there is a slim chance the child could have a Scorpio tail.

    When designing your Isoling you may rely on your egg's theme, color palette, and markings shown to design it. You may add small amounts of white as a free color. An egg's design is rolled first based on color (Does it have colors from both parents, parent 1, parent 2, or neither parents). Then rolled for markings (From both parents, parent 1, parent 2, or neither)