The purpose of this was plain: when his suspenders chafed him he might, by shifting the straps to different buttons, shift the strain on his shoulders.

All German soldiers' trousers have this extra garnishment of buttons aft.
Somebody thought of that.

Somebody thought of everything.
We in America are accustomed to think of the Germans as an obese race, swinging big paunches in front of them; but in that army the only fat men we saw were officers, and not so many of them.

On occasion, some colonel, beefy as a brisket and with rolls of fat on the back of his close-shaved neck, would be seen bouncing by, balancing his tired stomach on his saddle pommel; but, without exception, the men in the ranks were trained down and fine drawn.

They bent forward under the weight of their knapsacks and blanket rolls; and their middles were bulky with cartridge belts, and bulging pockets covered their flanks.
Inside the shapeless uniforms, however, their limbs swung with athletic freedom, and even at the fag-end of a hard day's marching, with perhaps several hours of marching yet ahead of them, they carried their heavy guns as though those guns were toys.