With this system your are perfectly equipped for every dive. Double bladder wing for complete redundancy, stainless steel back plate and an extremely durable harness provides highest safety in every situation. 1680 DEN Ballistic nylon outer shell. Stainless Steel back plate. Pro-Harness system with one left QR-buckle, constructed of 50mm ballistic webbing for maximum strength and with padded shoulders for better support and comfort. With concealed storage pack for SMB's and lift bags. Padded shoulder straps with two stainless steel D-rings. 50mm crotch strap with two stainless steel D-rings. Available in 18 kg / 40 lbs and 27 kg / 60 lbs lift capacity.