At the heart of the new flagship running shoe from SPIRA is a brand new last. The last was developed based on the latest foot measurement studies and offers one of the best fits in the industry and a very smooth ride. The Striker offers:

• New SpiderCage technology allows for optimal energy transfer from the heel upon impact to the midfoot for a secure and comfortable support in midstance and push-off.
• Unique 3D mesh and mono mesh combination allows for superior breathability and secure fit.
• Dual-density insole: visco elastic heel and elastic forefoot support the energy transfer created through the WaveSpring™ technology. Integrated airflow channels and strategically placed vents allow air to escape from the spring chambers improving the foot climate.
• Injection molded TPU plate with integrated spring housing allows for a smooth ride with the right amount of stability. Due to the unique properties of the WaveSpring™ technology the cushioning properties will outperform any other shoe in the market. Each spring is finely tuned to the corresponding size offering the correct amount of cushioning for each size - no other brand in the industry has addressed this need but SPIRA.
• Independent forefoot springs allow for the necessary forefoot flexibility and optimized push-off energy.
• Since the WaveSpring™ technology offers an unsurpassed longevity, the outsole was designed with a multi-density rubber compound that offers a high degree of durability.