Temperature regulating insoles combat both freezing and sweltering conditions

Design & Build

• Stack & Drop NNormal Kjerag 02 features a moderate stack height of approximately 26 mm heel / 20 mm forefoot, paired with a 6 mm drop, aligning with precision-focused trail footwear.

• Midsole EExpure supercritical foam This upgraded foam offers enhanced responsiveness and cushioning while keeping weight low. Reportedly has 35% higher rebound, 40% greater durability, and improved abrasion resistance compared to the original.

• Rocker / Propulsion The design includes a dynamic rocker profile (implicit from dynamic rocker for faster turnover) which helps propel the stride and elevates performance on steep or technical terrain.

• Outsole Vibram Megagrip Litebase A lightweight, high-traction outsole that remains durable even in wet conditions. It trims around 30% of the sole weight and uses thinner rubber while maintaining performance. Features 3.5 mm lugs.

Upper & Fit

• Single-layer Matryx jacquard upper The NNormal Kjerag 02 Redesigned for reduced weight, better breathability (3x more than previous models), and strength. Woven with polyamide and Kevlar yarns for enhanced abrasion resistance and hydrophobic properties.

• Fit Offers a medium fit with a roomy toe boxstaying true to sizing. The fit is generally secure, though individual experiences may vary.

Outsole & Traction

• Vibram Megagrip Litebase Proven traction, especially on rocky or wet terrain, with lighter construction.

• 3.5 mm lugs Balance bite and release, suitable for varied terrain and pace.

Performance & Feel

• Lightweight yet cushioned At roughly 7.5 oz per half-pair ( 214 g), the Kjerag 02 remains light but feels springy and comfortable thanks to upgraded midsole and rocker design.

• Responsive & fast Built for speed and technical terrain, the shoe enables efficient turnover and a lively gait.

• Durable & stable feel While lightweight, the rocker and outsole design offer stable footing. Durability of midsole and outsole is improved, though some users report issues over time.

• User feedback positives:

  The 02s have noticeably more cushioning breathable, form-fitting locked in at the heel fast, stable disappears on your foot

• User feedback criticisms:
  Some users mention ankle instability or narrowness, especially on technical terrain, and reports of midsole separation or blistering after moderate mileage.

Who Its For

Ideal for trail runners who want a light, fast, and responsive shoe with moderate cushioning, precision fit, and sticky tractionthink speed workouts, steep climbs, or technical training. Its not a maximalist comfort shoe, but rather rewards skilled, dynamic running.

Summary

The NNormal Kjerag 02 is a refined, performance-oriented trail shoe that builds on its predecessor with enhanced cushioning, improved rebound, and lighter, breathable upper materials. The rocker geometry and sticky Vibram outsole boost speed and stability on technical terrain, while a moderate stack and light weight keep it agile. The EExpure foam delivers a poppy ride with strong durability. Runners seeking a nimble, precision trail shoe will appreciate the Kjerag 02though those with ankle concerns or who prioritize plush cushioning may find it less forgiving.

Phase change materials buffer temperature extremes in desert environments