LIGHT. FAST. BREATHABLE. Optimized for setting PRs at your fastest pace yet. Featherlight yet feature rich, the Race Vest uses the latest in fully customizable vest-fit technology with the ultra-durable Comfort Cinch™ 3.0 and protective mesh panels that prevent chafing over many miles. A roomier cut in the back and spacious arm holes provide a wider, taller fit for larger frames than our vesta version. The Race Vesta includes a narrower cut in the shoulder straps and back offers a more tailored fit for smaller frames than our vest version.