The Adidas Ultra Boost 3.0 has only been on the market for a couple of months and Adidas has only just scratched the surface of that sneaker's potential but the next generation of Ultra Boosts is already appearing overseas, including at French retailer Zalando.

That site has provided a detailed look at the Ultra Boost 4.0 in the familiar "Core Black" and "Core White" colorways, showcasing a new pattern on the beloved primeknit upper.

According to reports, the Ultra Boost 4.0 features a new, thicker, ribbed material on the upper, though we'll just have to wait and see for ourselves when they drop in the U.S. later this year.

Preview some of the upcoming Ultra Boost 4.0 colorways in the gallery above.