Mild Seven, Minakai, and Aiwa are real brands.
-san = standard Japanese name suffix, shows politeness
The bag's shoulder strap is on the wrong side in panel 4.

Piro speaks:
THAT happened because of a goof i made in drawing frame 4. I realized after i drew it that i was looking the wrong way, so i inverted the frame (its backwards from the way i drew it - something i almost never do) What i neglected to remember was to flip the bag too :)