Craft Size Chart The Active Extreme 2.0 Brilliant LS Windstopper combines the superior body-temperature management and ergonomics of Active Extreme 2.0 with the outstanding wind-protective properties of Gore Windstopper(R). Featuring Windstopper panels in exposed areas, the thin and lightweight jersey provides excellent wind protection, breathability, moisture transport, and comfort throughout any workout in cold and windy conditions. Fluorescent colors and reflective details offer enhanced visibility. Features: - GORE Windstopper panels for weather protection - Breathable and quick-drying - Bright colors and reflective details provide visibility - Fabric 1: 100% Polyester, Fabric 2: 92% Polyester, 8% ePTFE