Temple of Johns DOJ TAJ TOK JOJ Temporal of Jawnz I've not handled the TOJ calf personally but a friend of a friend owns a boutique that sells Lewis leathers. If it's anything like it then the lamb is a bit thinner, more elastic and pliable, less dense and hard. Their calf was noticeably heavier than the my DR's lamb. Honestly speaking, it isn't a dealbreaker either way. But I would prefer the jackets in lamb just so that I could wear it out more often when it got warmer.