Great workout shirt, photos show light wear The engineered heat-mapping of Apex means that you're free to focus on your best performance yet - no distractions, no exceptions. Because when you put in the overtime, Apex steps up every time. - Slim fit - Seamless construction - Visible heat and sweat mapping ventilation - Lightweight material - Breathable fabric - Sweat-wicking - Heat seal shark head logo to front chest - Gymshark heat seal logo to back - Jacquard Gymshark to internal neck. - 82% Nylon, 18% Polyester