SAN FRANCISCO (KGO) -- The latest trend in the tech world isn't on your screen, it's on your feet.
Joey Zwillinger helped invent shoes called Allbirds with co-founder Tim Brown who is from New Zealand.
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The shoes are made almost entirely of wool.
After becoming an overnight hit in the technology world, it only makes sense the shoes have attracted a lot of attention from venture capitalists.
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After taking on $2 million in August, Allbirds just closed another $7 million in funding in time for the holidays.
Watch the video player above to learn more about these shoes and where you can get your hands on a pair.