Essentials Carrier 2 (EC2) Plate Carrier by Mission Spec

The EC2 is an ultra-light weight armor plate carrier loaded with features and options. An improved design on its predecessor, the EOC, the EC2 weighs in at only 24.9 ounces (without armor, armor not included) and is designed to fit Medium or Large e,x(SAPI) or SAPI-like plates.

http://missionspec.com/products/essentials-carrier-2-ec2/