clodhopper

A strong shoe for heavy-duty use, a boot.

...who had got on his "hill shoes," as he calls a pair of clodhoppers as thick as a ploughman's, and stuck round with nails.

Any shoe construed (within a particular context) as ungainly.

We had to walk slow because of his wooden clod-hoppers, and that was the way I wanted it now

United States Navy ankle length work shoes, distinct from dress shoes or combat boots.

Smiling Jim Mead of New York tries on his GI clodhopper boots. He decided to return them "because we couldn't make any altitude with those aboard."

A peasant or yokel.

[…] now a book is no greater rarity than bacon and greens in Virginia; and the clodhopper of this country returns from his daily labours to a book […]

'Nephew Jack,' he cried, looking at me when I was thinking what to say, and finding only emptiness, 'you are a heavy lout, sir; a bumpkin, a clodhopper; and I shall leave you nothing, unless it be my boots to grease.'

A clumsy or foolish person.

All guess-work exploits shrivel up a good yard, or sometimes two, when brought to the measure, and the champion of the county dwindles into a clumsy clod-hopper.