The Dyna Line is Macho's most popular sparring gear and is the industry standard. High-quality 7/8" foam head gear features ear-release canals for added protection to eardrums during sparring. Dyna's design provides air flow through the head gear, and protects the top of the head while also allowing heat to escape. The specially designed holes provide ventilation for a cooler feel. The wide Velcro strap is strong enough to provide a snug fit for improved safety. Dyna is known throughout the industry to be a top quality economical brand with dependable performance.