Engineered for runners who move between roads and trails, the ProMorph blends responsive foam and all-terrain tractionROCKFORD, Mich., June 30, 2025 /PRNewswire/ -- Merrell, the world's leading hiking and outdoor footwear brand, is expanding its performance running portfolio with the debut of the ProMorph, an all-terrian hybrid built with responsive cushioning and confident grip across any surface. The ProMorph merges the DNA of an elite road racer with the technicality of a trail shoe, making it Merrell's ...