וַיְהִי֩ כִשְׁמֹ֨עַ אַחְאָ֜ב אֶת־הַדְּבָרִ֤ים הָאֵ֙לֶּה֙ וַיִּקְרַ֣ע בְּגָדָ֔יו וַיָּֽשֶׂם־שַׂ֥ק עַל־בְּשָׂר֖וֹ וַיָּצ֑וֹם וַיִּשְׁכַּ֣ב בַּשָּׂ֔ק וַיְהַלֵּ֖ךְ אַֽט׃ (ס)
And it came to pass, when Ahab heard those words, that he rent his clothes, and put sackcloth upon his flesh, and fasted, and lay in sackcloth, and went softy.
Rashi on I Kings
And walked barefoot. [He walked] barefoot.9Alternatively, Achov walked slowly [לאט], like a mourner or like one who is under a ban.—Ralbag