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 a custom fit for a wide variety of body types. L2500 EVA foam & 3mm polyethylene plate chest/back/arm padding. EVA foam & polyethylene plate shoulder padding. Moisture-wicking fabric for comfort. Commercial-grade elastic adjustment straps with hook and loop fasteners.