• Super durable circular knit construction for unmatched comfort, fit & feel
• Dual density EVA foam for increased impact protection
• Hinged design allows for maximum mobility
• Small: 10.2" Top Circumference, 9.1" Bottom Circumference
• Medium: 11.4" Top Circumference, 9.8" Bottom Circumference
• Large: 12.6" Top Circumference, 10.6" Bottom Circumference