BLACKHAWK! Casual Knit Short Sleeve Shirt 70% Modal 30% Polyester Imported Left side entry zippered chest pocket for quick access to passports, documents, etc. Constructed of lightweight, wrinkle-resistant fabric Back vents with mesh for breathability Low side slits for easy pant pocket and belt access New technology in pocket protects electronic devices from radio-frequency identification (RFID) scans Left side entry zippered chest pocket for quick access to passports, documents, etc.