Forcefield Back Protector Insert Pro The Forcefield Back Inserts are designed to replace existing back inserts and are approved to EN1621-22003 CE Level 2 (Pro) protection. Using Nitrex a unique high-tech triangular shock absorbing material, energy can be dispersed evenly over their surface whilst remaining flexible and comfortable. Features CE Level 2 Performance Soft and Flexible Repeat Performance Technology (RPT) Comfortable non-restrictive Breathable Lightweight Size Measurements Shape A Small 16.5 Height 10.5 Widest Point Medium 20.25 Height 10.75 Widest Point Large 22.5 Height 11 Widest Point (function() var cycle true ('table.sizechart tbody tr').each(function(row) classname (cycle !cycle) 'light' 'dark' row.addClassName(classname) ) )() Size Measurements Shape B Small 15.25 Height 11.5 Widest Point Medium 17.5 Height 13.25 Widest Point (function() var cycle true ('table.sizechart tbody tr').each(function(row) classname (cycle !cycle) 'light' 'dark' row.addClassName(classname) ) )() Note Some inserts will be all black while others will be black/yellow, though the construction is the same.