With harsh weather conditions on the horizon, Adidas introduces two new variations of the Ultra Boost built to withstand it all.

The Ultra Boost All-Terrain and Ultra Boost X All-Terrain feature splash-repellent Primeknit uppers that will keep the shoes protected from the elements. Extended collars will keep the ankle protected and warm during colder trips out, while all-terrain lux configuration ensures a stable experience in any condition. The runners are also treated to reflective detailing to keep wearers visible in the dark.

Look for the Ultra Boost All-Terrain and Ultra Boost X All-Terrain to release for $220 ($240 for LTD) in six colorways for men (dark burgundy, grey, core black, black, khaki and green night) and two colorways for women (mystery ruby and core black) on Thursday, Sept. 21 at adidas.com and Adidas retailers.

Adidas Ultra Boost All-Terrain (2)

Adidas Ultra Boost All-Terrain (3)