The On Running Cloudmonster Undyed Green features a breathable mesh upper that incorporates recycled materials. Black synthetic overlays give the upper style as they support your foot with every step. A red tab with a white cross accompanies Swiss Engineering branding at the lateral heel, while Cloudmonster branding is printed black-on-black across the lateral side panel. The laces, tongue, and insole are also black. The soft black TPU sock liner is durable, lightweight, and resistant to temperature changes. The black rubber outsole enhances impact absorption and provides traction.