The fabric has been selected after several months of initial testing to provide adequate visibility while still concealing your facial features (eyes, nose, hair). There is no need for eyeholes as the fabric stretches and the weave allows the wearer to see comfortably through the mask. As for breathing, no concerns either. Although, practicing how to maneuver your breath in different directions will only help the effect. Example: blowing warm air upwards towards your nose will trigger the morph higher in the midface.