Never worn Nike Blazer Low Leather Sneakers. The Nike Blazer Low has been re-released on numerous occasions since first appearing on the scene back in the 1970s. The Nike Blazer Low Leather Astronomy Blue was one of the simplest versions of the Blazer Low ever unveiled. This Nike Blazer Low had a crisp white leather upper with a white tongue and white laces to match. It also had a slightly off-white sail midsole and outsole. But it incorporated some tiny hits of color into the mix with its astronomy blue Swooshes and the blue Nike branding on the tongue tag and heel. The Nike Blazer Low Leather Astronomy Blue was released on June 29, 2020.