Breathable, ultra-comfortable way to restrain your hair at the work. Allows ample circulation while keeping hair in place to prevent stray strands from contaminating work areas. The honeycomb style is designed for all-day comfort by staying breathable. Not only comfortable, the honeycomb design is made from durable 100% nylon. The hairnet size is the outer circumference when the hairnet is laid flat on a table. The size you order is not based on the size of your head. You choose based on the volume of hair being covered. More hair means a bigger hairnet!