Slim profile with shorter caps allowing unrestricted arm movement and flexibility Injection molded polypropylene with impact modifiers offer superior strength and structural integrity 12 degrees more range of motion with stretch zone fabric and exterior arches - Great for quarterbacks, receivers and defensive backs Closed cell foam clavicle channel pads are removable and adjustable for precise fit SAS-TEC Visco Elastic Foam system is thin, light and flexible The Gear Pro-Tec line of RAZOR shoulder pads pushes the limits of design, every detail is focused on elite player performance. Cutting edge design, materials and construction culminate in advanced impact dispersion, dynamic range of motion and flexibility on the lightest weight platform in the industry. RAZOR is the pinnacle of success in protecting America's finest athletes for over 20 years .. Injection Molded Components. SAS-TEC Impact Zone Protection. Dynamic R.O.M. Arch Hinge. Adjsutable Protective Channel Pads. Sternum/Spine Protective Pads . Moisture Wicking Fabrics. PAD-LOC Buckle/Strap System. Compressed HEX Foam Comfort Liner. Patented Z-Cool (#7,168,104) Plastic Inner Arch Design .