Petzl THALES Safety Chest Collar Evacuation Triangle with Shoulder Straps C061AA00The THALES safety chest collar and evacuation triangle is designed for rescue operations, cable lift evacuations, and helicopter evacuations. The chest collar configuration allows the evacuee to be secured in an emergency and then evacuated with the triangle. Passing from the chest collar configuration to the triangle configuration is quick with the use of three hook and loop straps. The ergonomic shape of the seat and the presence of shoulder straps