Get ready to power through uphills and descents with the updated X ULTRA 4. It is as agile as a trail-running shoe but with all the stability and grip you need to tackle technical terrain. Equipped with a new chassis, the shoe is even better at protecting sensitive articulations without compromising freedom of movement.
Benefits:
- Trail-inspired agility – Drawing on our trail-running expertise, this shoe is lighter and more agile, so you stay nimble on uneven terrain.
- Enhanced stability – The new Advanced Chassis targets articulations on the outer foot to optimize stability without limiting your mobility.
- All-terrain grip – The All Terrain Contagrip outsole grabs the terrain, even when it’s wet or slippery, giving you more control especially on descents.
Features:
- All Terrain Contagrip – Our all Terrain Contagrip is built for the wildest variety of surfaces. It delivers durability & confidence on wet, dry, hard or loose surfaces.
- Advanced Chassis – Advanced Chassis is a molded insert embedded in the outsole. Providing strong lateral support and reassuring protection, it also delivers optimal mobility and flexibility.
- SensiFit – SensiFit cradles the foot from the midsole to the lacing system, providing a secure, snug, and virtually customized fit all around the foot.
- Chevron lugs – Lug design with deep penetration and multi-directional grip, improving traction on soft surfaces like mud or loose dirt.
- Anti-debris Mesh – Tight mesh that prevents debris from being trapped between your foot and the footbed.
- Synthetic upper – Synthetic upper material provide great durability and protection for outdoor activities.
- Textile lining – A soft, breathable lining for extreme comfort.
- Lace pocket – Provides easy storage for the Quicklace lacing system
- Welded upper – Stitch-free upper construction provides a smooth, glove-like fit and feel.
- Protective mudguard – A wrap of leather, synthetic or rubber around the base of the foot that protects the lateral and medial sides of the foot.
- Molded OrthoLite sockliner – Molded to match the contours of your foot, this OrthoLite insole provides superior cushioning, breathability and durability, to upgrade the comfort and performance of your shoe.
- Quicklace – Minimalistic and strong lace for one-pull tightening. Easy-on, easy-off.












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