Designed in collaboration with the mental-health initiative founded by Scottish skater John Rattray . the Why So Sad? x Nike Dunk Low SB The Predatory Bird features a design theme centered around positivity and wellness. The low-top sports a light blue leather upper with navy suede overlays and a wear-away Swoosh that fades from Coastal Blue to Speed Yellow. An embroidered graphic depicting the Predatory Bird mascot appears on the lateral heel . while a yellow question mark adorns the red suede heel tab. Why So Sad? is inscribed on the interior tongue tag. Underfoot . a translucent rubber outsole yields grippy traction.