Icebreaker Size Chart A technical top for year-round training. The Amplify Long Sleeve Half Zip is made from Icebreaker's signature Cool-Lite(TM) fabric for moisture-wicking and temperature regulation in warm-to-hot conditions. Features: - Cool-Lite(TM) fabric for faster wicking and comfort in warm to hot conditions - Corespun fabric for enhanced durability - Eyelet mesh back for full ventilation - Offset shoulder seams for comfort - Reflective zip for visibility in low light - Drop tail hem for added coverage - Center back length: 76.2cm/30", Size L - Icebreaker reflective heat transfer logo - Large = 164 g / 5.78 oz - Front Body: 52% Merino Wool, 35% TENCEL(R), 13% Nylon Back Body: 51% Merino Wool, 35% TENCEL(R), 14% Nylon - Model images are shown in an alternate color