Available September 16, Saucony's first-ever footwear collab with Black Girls RUN! is part of multi-year partnership ROCKFORD, Mich., Sept. 5, 2024 /PRNewswire/ -- Saucony, a leading global performance running lifestyle brand, today announced the limited-edition Black Girls RUN! x Saucony Endorphin Speed 4, marking the brand's inaugural footwear collaboration with Black Girls RUN! (BGR!). The Endorphin Speed 4, in the BGR! vibrant colorway, reinforces Saucony's multi-year partnership with BGR! to support th ...