ROCKFIGHT CE FLEX, THE ULTIMATE CHEST PROTECTOR This isn&';t your typical chest pro. The all-new RockFight CE FLEX is a chest protector built to withstand whatever the elements throw at you. Taking our RockFight base with built in EPP that manages low speed impacts and combining it with a removable, flexible D3O back insert for hard impacts we&';ve shattered safety standards all while keeping a slim, breathable, lightweight profile. CE EN14021 :2003 Stone Shield for proven protection from roost and other lofted debris on chest only Flexible D3O back insert exceeds CE EN1621-2 :2014 Level 1 for impact absorption