Ahead of the expected winter launch, the Adidas Ultra Boost 4.0 continues to surface in new colorways.

The runner, which bears an all-new pattern on its Primeknit-constructed upper, is pictured here in navy, red and blue-grey. As usual, full-length Boost cushions the ride and black Continental rubber hits the pavement.

While an official release date hasn't been announced, it's been rumored that the Ultra Boost 4.0 will land sometime in December.

Adidas Ultra Boost 4.0 Navy

Adidas Ultra Boost 4.0 Red

Adidas Ultra Boost 4.0 Grey/Blue Release Date Profile

Adidas Ultra Boost 4.0 Grey/Blue Release Date Toe