The spelling of the word "tobes" can be confusing as it seems to violate typical English orthographic rules. However, the pronunciation of the word /toʊbz/ reveals that it is actually a plural form of the word "tobe" (/toʊb/), which refers to a type of traditional Muslim tunic. The -es ending is used to form plurals of nouns ending in a voiced consonant sound, such as /b/. Thus, "tobes" is the correct spelling for multiple tob(e)s.