High-quality, shock-absorbing, extra thick foam padding.
All made of durable synthetic leather, lace up top. Large, padded earpieces. Additional face protection with cheek and even more chin padding for front and underside for the jaw. Velcro strap back closure with padded cushion.
This is also being used for MMA/combat sports training..
Size Chart, Head Circumference in inches:
Medium Size = up to 23.5 Inches
Large Size = 24 Inches and up