4 X Performance Upgrade ✔ Lab-Tested Fabric → 38 breathable pores/cm² (microscope comparison) → Swiss anti-odor tech (SGS certified, 3-day wear test) ✔ Millimeter Precision • 11 panel adjustments based on Asian body data • Reflective lower back strip for night safety ✔ Brutal Testing Certified 2 dumbbell abrasion test (zero pilling) [Video] 50+ violent machine washes (no deformation)