The 4th version now provides even more comfort through new midsole materials and an updated Ortholite insole.
Features: Upper features a breathable knitted upper with a roomier vamp promoting more ventilation and natural foot movement.
MORPHIT construction in the mid-foot and heel to provide a comfortable, secure and supportive environment.
Pressure Free Tongue is designed to provide comfort and avoid irritation during flexion.
Ortholite insoles utilize 20% recycled content while still retaining the performance fit and comfort that runners want.
The QU!K Spine is a carbon fiberglass shank that adds linear integrity to the mid-foot.
QU!K Flex 4Foot Engineering provides for a natural and balanced toe-off and enhances ground contact for better acceleration.
QU!K Spring+, an EVA foam designed to provide more rebound and comfort in a lightweight package.
QU!KFOAM, a midsole material comprised of an EVA rubber blend with PU coating that provides excellent durability, cushioning and responsiveness.