Traits

3-6; The most common amount is five sacks with one on each cheek then three additional sacks across the body and tail.

7-11; The more sacks on a Goom typically mean the smaller they are.

12-15; The most membrane sacks ever counted on a Goom was fifteen.

1-2; Gooms with fewer sacks often have issues with producing more goo than they can store and thus are seen drooling and spewing out goo more frequently