WOMEN'S SPIRE 4
Ultimate comfort is the concept behind this top of the range neutral running shoe. This 4th version now provides even more comfort through new midsole materials and an updated Ortholite insole.
FEATURE / BENEFIT
• 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.