Following are a number of back-translations as well as a sample translation for translators of Isaiah 63:2:

• Kupsabiny: “Why are your clothes read
  like those of people who trampled on grapes making wine?” (Source: Kupsabiny Back Translation)
• Newari: “why are your clothes red,
  like someone who crushed grapes in a wine press to make wine?” (Source: Newari Back Translation)
• Hiligaynon: “Why is-it that his clothes are very red like the clothes of a man who tramples/treads grapes.” (Source: Hiligaynon Back Translation)