Rubber sole The adidas Yeezy Boost 700 V2 “Tephra” is the fourth colorway for “Version 2” of the chunky sneaker by Kanye West. After its first three colorways featured low-contrast, tonal color schemes, this “Tephra” edition adds a bit more contrast with distinct color blocking in light grey and dark grey tones across the upper and thick midsole. A gum rubber outsole completes the palette. The “Tephra” 700 V2 is constructed with a mesh textile base with overlaying panels in premium leather and suede. Reflective detailing adds a touch of flash. The adidas Yeezy Boost 700 V2 “Tephra” released on June 15, 2019.