Exotech Upper Body & Shoulder ProtectionPolyethylene outer shell L2500 EVA foam & 3mm polyethylene plate chest back arm padding EVA foam & polyethylene plate shoulder padding The ExoTech Upper Body Shoulder system offers a 3 mm polyethylene hard shell for protection from blunt force trauma. EVA foam inner padding cushions the body and soft brushed tricot and mesh lines the inside. Each piece of the system fastens and adjusts with durable connector straps with hook and loop closure, allowing