boot types and attachments

Metal boot spikes - helps you walk on ice...

Snowshoes - helps you walk on snow...

Mudshoes - solid rubber with wide bottom to disperse your weight so you don't sink into the mud

I'm sure there could be others..

...Such as boots that protect your feet from hot surfaces! Just saw what lies below the stone... nice work devs!

Quote from Zaphieus

Maybe shock absorbent shoes to to reduce fall damage?

Sure! Make some compound with rubber and some type of silicon kinda thing, then add it to your unmodified boots. -25% fall damage. More of an advanced tech.