The 5.5s are Leatt’s more protective line of chest protectors. The Chest Protector 5.5 Pro HD is the most protective version of the 5.5 chest protector junior line. Specifically designed to meet the CE’s safety approvals for front, back and shoulder impact protection. Three dimensional design with multi layer, articulating plates, for a great fit. Flank protectors add a level of security seen on few other upper body protectors for either adults or juniors. It has also been designed to integrate perfectly with all Leatt neck braces although it works equally well without a neck brace. BraceOn™ strap system attaches the protector to the neck brace yet provides independent movement of body, brace and chest protector. The 5.5 line of protectors are the best fitting, most protective line of hard shell protectors available today.