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and measures your Training Stress Score (TSS) for crucial insights to take your runs to the next level
high-quality audio that turns tough climbs into epic moments and long runs into moving meditations
Optimized for stability
unforgettable bright pink mirror lens
Sunday Shades Max Series Sunglasses - Momentum Mach and measures your Training StressWhen youre dialed in and moving with purpose, your gear should keep the pace. The Momentum Max is designed for athletes who want sunglasses that stay responsive through every effort and motion. Those bold mirror violet lenses bring more than standout style. Built from tough, impact ready PC material and finished with a warm tint, they cut glare, sharpen contrast, and keep your view crisp as lighting conditions change. With UV400 protection built in,