2010 marked the release of Reebok's ZigTech innovation encouraging a wave of energy from heel to forefoot to maximize the potential for propulsion. The Zigultra 'Neon Yellow Blue' implements Zig technology while integrating a blue to yellow gradient mesh upper from heel to toe. Down below, the Zig outsole incorporates a two-toned shark tooth design, engineered to adapt to the impact of every step. A deconstructed Reebok logo at the midfoot adds flair and structural function for city or rural runs.