Midsole Technology
Light Boost Cushioning
Next-generation Light Boost foam delivers the legendary energy return of classic Boost in a lighter, more efficient package. This retooled TPU-based compound is 10% lighter than the original while maintaining the plush, bouncy feel that made Ultraboost iconic. The 38mm stack height provides maximum cushioning for high-mileage training, with a 66-70% energy return that keeps legs fresh from the first mile to the last.
Foam TypeLight Boost TPU
Heel Stack38mm
Forefoot Stack28mm
Drop10mm
Energy Return66-70%
Traction
Continental Rubber
Strategic Continental rubber placement delivers exceptional grip where you need it most, while lighter materials in the midfoot and forefoot reduce overall weight without sacrificing durability. This hybrid outsole design provides the wet-weather confidence of premium rubber compound with the efficiency modern runners demand. A refined approach that keeps you connected to the road in all conditions.
Rubber TypeContinental Compound
PlacementStrategic High-Wear Zones
Wet GripExceptional
Best OnRoad & Urban
Stability
Torsion System
The iconic X-shaped Torsion System provides essential midfoot integrity and torsional rigidity to stabilize the plush Boost platform. This engineered shank allows the forefoot and rearfoot to move independently while maintaining arch support, creating a smooth transition from heel strike to toe-off. A time-tested technology that balances the soft, bouncy ride with the structure needed for efficient running.
Support SystemTorsion System
DesignX-Shank Architecture
FunctionMidfoot Stability
FeelStable & Smooth
Upper Construction
Primeknit Upper
Stretchy Primeknit upper delivers a sock-like fit that adapts to your foot shape while providing targeted support. The highly reflective yarn enhances visibility during low-light runs, and the seamless construction eliminates irritation for all-day comfort. A refined knit that balances breathability, flexibility, and structure—whether you're logging morning miles or transitioning straight to streetwear.
Upper MaterialPrimeknit
FitSock-Like, Adaptive
VisibilityHighly Reflective
Best ForRunning & Lifestyle
Product Specs
Ultraboost 5X
The evolution of an icon—lighter, bouncier, and more versatile than ever. At 9.4 oz with a 10mm drop, the Ultraboost 5X combines retooled Light Boost foam, strategic Continental traction, and adaptive Primeknit comfort. A true dual-threat that excels as a max-cushion daily trainer while seamlessly transitioning to lifestyle wear. The shoe that proves you don't have to choose between performance and style.
Weight9.4 oz / 266g (US 9)
Price$180
Best ForDaily Training & Lifestyle
CategoryMax-Cushion Daily Trainer
Prepared with intention.
Every product is carefully inspected and handled by our team before it ships. From fit and function to final details, we make sure each piece is ready for the outdoors ahead—so you can focus on the experience, not the gear.
Passion drives us
At SpokeX Bike Co., bikes aren't just our business — they’re our way of life. As a rider-owned and operated shop, every decision we make comes from firsthand experience on the trail, at the race, and on the open road. We know what it’s like to chase a new line, push through the pain cave, and celebrate the ride — because we live it every day.
