The METRO IV OTC is new for Kid's Training on adidas.com. Scroll through the pictures above to see more details from different angles. If you’ve tried out the METRO IV OTC before, leave a review below to let us know what you thought. We’re still working on getting you more information about the METRO IV OTC on adidas.com so come back soon. In the meantime, here’s the product article number S48952 for your reference, it’s categorized as: Training Socks.