Propel your hike in our fastest, lightest & most breathable trail shoe. Zionic is a springboard for trail time. Features. Higher-traction TPU outsole for lightweight durability. 4mm multi-directional lugs for traction. Two-finger webbing loop on the heel for easy pull-on. Stability shank delivers lightweight support. TPU overlays for durability. Recycled PET plastic. Eco Anti-Odor for natural odor control. Contoured Fit-Follows foot's contours for a more secure fit. Performance mesh upper with TPU overlays for durability. Quick-dry lining for active use. Removable PU insole with arch support for long-lasting comfort. Non-marking multi-directional lugs for increased traction. Specifications. Shaft Height: 2.76in/70mm. Heel Height: 2.44in/62mm. Heel-to-Toe Drop: 0.55in/14mm. Colour: black