Features Mesh shell for free airflow Removable thermal liner C.E. rated protectors in shoulders and elbows Removable back protector pad with pocket for optional C.E. protector 2 waist level pocket and 1 chest pocket 1 gun pocket and a zippered pocket inside the jacket Pocket for audio devise/ accessories on thermal liner Zippered sleeve adjusters Adjustable hook and loop waistband for a custom fit Reflective panel on the jacket for better visibility 1 gun pocket and a zippered pocket inside the jacket Dual button snap adjustments on both arms for a secure fit with armor Sizing Please measure the circumference of your chest in inches using a cloth tape measure and add 1 if the measurement is an odd number to get the next even number and choose the size from the chart below. Size Chart Size Chest (in) Length (in) Sleeve (in) S 40 27 24 M 44 27 24.5 L 46 27.5 24.5 XL 48 28 26 2XL 50 28 26 3XL 52 29 26 4XL 54 29 27 5XL 56 29.5 27