When traveling to Japan, it's essential to respect the local customs and dress appropriately. While Japan is a modern country with diverse fashion trends, there are still some guidelines to follow to avoid standing out as a tourist or unintentionally causing offense. 

Here are some tips on what not to wear in Japan as a tourist:

1. Avoid wearing overly revealing clothes such as low-cut tops, short shorts, or mini skirts. Japanese culture tends to value modesty, and showing too much skin can be seen as disrespectful. It's best to opt for modest and conservative clothing choices.

2. Steer clear of flashy or loud patterns and logos. In Japan, there is a preference for subtle and understated fashion choices. Avoid clothing with large logos, bright colors, or bold patterns that may draw unnecessary attention.

3. Don't wear shoes that are difficult to slip on and off. In Japan, it is customary to remove your shoes before entering someone's home, traditional ryokans, temples, or certain restaurants. Slip-on shoes or shoes with Velcro straps are convenient and respectful options.

4. Avoid wearing clothing with offensive or culturally insensitive imagery or text. It's crucial to be mindful of the messages portrayed on your clothing to avoid unintentionally offending others. Opt for neutral and respectful designs instead.

5. Refrain from wearing excessive accessories or jewelry. While accessorizing can add flair to your outfit, it's essential to keep it minimal in Japan. Over-the-top jewelry or accessories may come across as flashy or ostentatious.

Overall, when packing for your trip to Japan, it's best to choose modest, conservative, and culturally respectful clothing options. By following these guidelines on what not to wear, you'll be able to blend in seamlessly with the local culture and enjoy your travels to the fullest. Remember, when in doubt, it's always better to err on the side of caution and choose clothing that is more modest and understated.