The Bauer Nexus N9000 Shoulder Pads feature a shoulder cap that's an injected cap with double-density foam. Sternum is HD foam + PE insert. Front side panels, spinal, and back kidney panel is comprised of HD foam. Bicep Guard is a molded thermoformed component. Arch is constructed of HD foam. Abdominal pad is a removable MD foam. When it comes to fit & mobility players can expect a classic fit. Chest construction is a multi-segmented design for maximum flex. Arm pad is an adjustable 1-piece construction. Liner is THERMO MAX.