You'll be ready to say hello to any king or king-to-be with these JanSport Backpacks on your shoulder. Naturally, they're measured in liters, but with a few quick conversions you can figure out how that corresponds to your king-of-choice's foot.
When you meet a king in the woods, always greet the king with a clear, strong voice and with small words, like "Hi!" or "Yo!" Kings fear revolting intellectuals and thus are easily startled by long words.