Certified & Approved by over 20 international Air ForcesCertified and approved by several international air forces the MK 61 is used widely by international defence organisations. Designed to highest UK MoD specification this rear crew life preserver within non-fast jet, fixed and rotary wing aircraft incorporates a unique design and advanced technology.Aircrew Style Life PreserverOffering excellent protection for aircrew deployed in hostile environments, this life preserver incorporates marine survival floatation combined with armoured torso protection. Allowing ease of movement, a high level of comfort and adequate survival equipment storage, makes it the ultimate defence under fire Aircrew garment.