The Superior 4 is built to be lighter, grippier and sleeker. It features a knit, wrap-around style upper to more security, plush yet resilient Altra Quantic™ midsole and sticky MaxTrac™ rubber outsole. The rounded heel style and updated lug pattern tops off this light weight trail crusher.
BALANCED CUSHIONING: Places your heel and forefoot the same distance from the ground to encourage proper, low-impact form throughout your run.
FOOTSHAPE™ TOE BOX: Allows your toes to relax and spread out naturally for more comfort and stability.
FIT4HER™: The Fit4Her™ technology means every women's shoe is customized for the unique anatomy of the female foot.
INNERFLEX™: Grid-like grooves in the midsole allow your foot to flex while being lighter, for more speed and better performance.
GAITERTRAP™: Hook-and-loop tab allows strapless gaiter attachment that prevents debris from building up beneath the shoe.
TRAILCLAW™: Canted lugs positioned strategically beneath the metatarsals to provide traction at toe off.
MAXTRAC™: A perfect combination of grip, traction and durability that will eat up gnarly terrain like a boss.
QUANTIC: Quantic™ was inspired by a desire to combine the plush feel of Altra EGO™ with a lightweight ride, it cushions every step and floats over any surface
Weight: 6.6 oz / 187 g
Insole: 6 mm Contour Footbed with removable StoneGuard™
Midsole: Quantic ™ with InnerFlex™
Outsole: MaxTrac™ Rubber with TrailClaw™
Stack Height: 21 mm
Upper: Seamless wrap-around engineered knit