I think it’s safe to say that Australia’s Cas and Jonesy are MailChimp’s most adventurous customers. Last month, they finished the longest unsupported polar expedition of all time. That means they were the first explorers to independently walk from the end of Antarctica to the South Pole and back—and they’re the youngest explorers to reach the South Pole. It took 89 days and 2,275 km (1,414 mi) of skiing, and they hauled everything they needed for three months on sleds.

Wow.

We mailed Cas and Jonesy some Freddie hats to keep their heads warm, and some Freddie plushies for companionship. Here’s a picture of them with their MailChimp gear, somewhere in Antarctica. All smiles, despite the fact that they’ve been traveling in, oh, the harshest environment on the planet:

For more photos from Cas and Jonesy, check out their Flickr stream. And Australian news program Sunday Night put together an incredible video about their journey.

This got us thinking about all the places Freddie has been. We’ve got customers all over the world, and we’ve mailed more than 2,000 hats and 60,000 shirts to 145 countries. That’s a lot of hats. And a whole lot of shirts.

Lots of wonderful customers have sent us pictures of their Freddie hats and shirts around the world. Here are some of them:

Left to right: waiting for a flight at the Amsterdam airport; alone in Paris; San Francisco; on the news in Hawaii; Guido at Machu Picchu; Alexandre in Mauritius; Will's adorable kids in Venezuela; Hue', Vietnam; Tubaniso, Mali

If you have a photo you’d like to share on our Around the World with Frederick Von Chimpenheimer IV Flickr page, send it to twitter at mailchimp dot com, and we’ll add it to the set.

Cas and Jonesy, you inspire us.

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