Speed changes everything. As heat rises, air flows through. Just 4.3 oz / 120 grams of Space-O™ T-Shirt for the times you pursue.
The upper expression of our long-distance system. Engineered for when every gram matters, when heat builds fastest. Race-day essential. Training-day revelation. Pin your bib through the laser perforations without fuss. For the days you chase time. Or when it tries to chase you.
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