Knife 4 White Pearl is here! What's the upgrade compared to Blade 3? Blade 4 still has a performance breakthrough based on Blade 3. This allows me to see the detailed upgrade control of domestic design! There are a few points you need to understand: Continuous weight loss, down to about 380 grams in size 42, the upper is available in multiple versions and is more breathable! 2Full-length Li-Ten supercritical midsole fabric and Li-Ten insole feel lighter and more comfortable tough! 3. The center of gravity of the forefoot is lower, and the breakthrough feeling is more radical. However, the feeling of lower front and rear feeling depends on whether you like it or not! 4. The two-way herringbone pattern grip is still abnormal! The wear resistance remains at the same level as the third generation!