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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
Engineered for speed and endurance
to simplify carb intake monitoring
deltaG was demonstrated to induce a unique metabolic state
Oils reduce friction and give glide
COROS - Apex 4 - Black Silicone Caps Engineered for speed and enduranceWhy We Love It Built for the mountains, the COROS APEX 4 is the ultimate trail running watch for athletes who live for elevation gain, technical terrain, and long hours on the dirt. From navigating ridge lines to tackling 100 km ultras, it delivers reliability and precision where it matters most. With rugged titanium strength, all weather durability, and outstanding battery life, it thrives in wild conditions. Every feature feels designed for serious
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