Bauer Supreme S150 Shoulder Pad features a thermoformed cap with MD foam at the shoulder. Sternum is MD foam with a polyurethane (PE) insert. Front Side Panels are perforated MD foam. Spine is protected via HD foam with a PE insert. Back side Panels are MD foam. Adjustable, 1-piece MD foam with molded PE insert on the bicep guard. Arch is molded MD foam. Belly/Abdominal Pad is removable MD foam. Anatomical fit. Base body is a multi-segmented design. Hydrophobic mesh liner.