The A-1 Chest Protector features a Level 1 CE & UKCA Certified Polyhedron Hybrid Technology chest & Polyhedron Technology back protector that offers unsurpassed Levels of ventilation, is super-lightweight & delivers excellent upper body protection against impacts. Features Lightest certified Level 1 chest protector, weighs only 664 grams in size M/L 18% of the chest protector’s structure consists of ventilation apertures & these are aligned through both layers of the hybrid structure to ensure maximum ventilation & airflow Ultra-ventilated with ram air plenum directing heat build-up away from the chest Flexible chest protector molds to the chest shape for an adaptive fit Anatomically profiled back protector is contoured to follow the natural curves of the spine for superior comport Adjustable & removable shoulder padding for a customized fit BNS compatible via elasticated BNS pull tabs