Hard Case Included. Medium G1 Facepiece: – Lightweight and low-profile. – Enhance situational awareness and visibility through a wide field of view. – Prevent potential cross-contamination when units are shared through unique mask design, which restricts exhaled air from entering the mask-mounted regulator. – Open port design allows for lower breathing resistance both on and off air with the goal of reducing fatique. – Enable short-range communication with mechanical speaking diaphragm. – With polyester head harness. G1 Carrier and Harness Assembly: – Clean quickly with easy-to-remove soft goods. – Improve harness durability in tough environments with nanosphere-coated webbing to improve resistance to water and chemical exposure. – Increase comfort with optional shoulder pads and lumbar support to help reduce fatique. – Improve ease of donning through shoulder pad placement to reduce twisting and increase comfort. – Nylon harness without padding and chest strap. Low-pressure (2216 psig), 30-minute-rated aluminum cylinder.