Streamlined backframe provides comfortable fit with lower profile Featues one-piece backframe constructed of lightweight, time-tested, durable aluminum alloy Parachute-Style, oversized harness fasteners designed with gloved hands Enhanced latching system with durable para-aramid fabric band Includes efficient breathing circuit Features Top Down Convertibility concept for c increase in versatility, compatibility with Scott product line E-Z Flo regulator with Vibralert end-of-service indicator Has two dual-redundant pressure reducer interconnected through automatic transfer valve Quick-don mounting system in E-Z Flo regulator Air-saver switch angled for easy operation with gloved hand Fully padded shoulder straps and waist belt Integrated donning/carrying handles Dual mechanical speaking diaphragms Remote pressure gauge Cam-Over center cylinder adjustment band Drag rescue loop