Louis Garneau Men's Size Chart Improved aerodynamics, compressive fabrics, and aero-optimized sleeves: this jersey offers extreme performance for the serious cyclist. Features: - Coldblack(R) reflects UV rays to reduce heat build-up even on dark textiles - Full-length zip with comfort trim protects the skin from irritation caused by the zip - Aero-optimized sleeve - Laser-finished hem at arms designed for improved aerodynamics - 3 floating back pockets: Free at the bottom, create no tension when full and offer added ventilation - Multimedia sweatproof pocket protects your multimedia device thanks to a double wall that blocks moisture - Super Light Grip at back hem maintains fit and perforated for extra lightness - Strategically placed reflective inserts enhance visibility for maximum safety on the road - Back reflective accents