When the day is hard and loud, like pushing through Shinjuku at rush hour, this gives you a wall to put your back against.

A banked red, more guard than fire, edged in black. It tastes of iron and the first bite of pepper.

Pushing through with your back unguarded is its own kind of strain. Less a barrier than a wall to set your spine against, so you can face the rush without bracing from every side at once.