I think (な）（れ）（た）is better.

「履き古しの靴」だと思もいます。新しいのがもったいないですから。If you use the wildcard characters in jisho.org (?, *) you can find new words pretty easily. By typing haki* you get a list of every word beginning with haki, if you type haki?? you'll get a word beginning with haki and two syllables.

はきなれた　is the best, i guess. but could be はきやすい. too :) good luck :D

maybe ... やすい could be another answer too. 履きやすい: comfortable to wear (shoes). 書きやすい: easy to write (the material like pen). 持ちやすい: easy or fit to hand: (bag, or something you carry with your hands).

ハイキングには　履き替える靴　で、行ったほうがいい。