ALL-DAY PERFORMANCE: Remains effective in the daytime and nighttime alike. ANSI/ISEA 107-2015 CLASS 1, TYPE O: Built to meet the requirements of national safety standards for high-vis protection. CONTRASTING COLORS: Two-toned design, enhanced with high-vis lime stripes for a more attractive and eye-catching appearance. NIGHTTIME GLOW: 360 Degrees of reflective coverage for excellent nighttime performance. COOLING EFFECT: Lightweight, breathable, and quick to dry, perfect for all-day comfort. Stay safe in comfort and style with this long sleeve high-visibility reflective shirt! Lightweight, quick-drying, and ultra-breathable, this shirt will keep you dry and comfortable for hours on end. It features a bold and contrasting two-tone design, with reflective tapes that glow brightly in the dark. We built this shirt to comply with the stringent standards of ANSI/ISEA 107-2015, so that you can be confident that you are receiving the best protection.