SPIRE 4 Womens | Neutral Running
A perfect blend of stability, linear integrity and propulsive feel from the lightweight QU!K SPINE fiberglass midfoot shank. The QU!K FLEX 4Foot Engineering provides enhanced ground contact for better traction and acceleration. Flex grooves mimic the natural motion of the foot to deliver a natural and balanced toe-off. Feel the cushioning and responsiveness at a reduced weight to elevate the running experience with QU!KSPRING+, a modified base EVA material. The QU!KFOAM layer delivers an extraordinary combination of cushioning and responsiveness with excellent durability facilitated through a midsole EVA rubber blend with PU coating.
The breathable knit upper allows more ventilation and freedom for natural foot movement. For a secure, supportive and comfortable midfoot and heel environment, the MORPHIT system secures a perfect lockdown during a run. A Pressure Free Tongue removes pressure to the ankle during dorsiflexion from the top of the foot by combining super-soft materials with an anatomical pattern and thin padding to prevent bunching at the ankle. Long-lasting comfort, excellent moisture management and a high-level of breathability achieved through open-cell Ortholite insoles utilizing 20% recycled content.