Back protector with integrated reflecting Recco® Avalanche Rescue System Transponder. Back protector with outer shield provided with ultra-perforated articulated plates that integrate the honeycomb structure, to distribute and absorb impact energy. PE support structure and mesh - double jersey cover for optimum comfort in contact with the body and thermal comfort. Adjustable removable braces, lumbar band with double adjustment strap in velveteen combined with mesh for increased thermal comfort. Lumbar joint to optimize ergonomics.