Out Fox Field Guard Size M - Vet-Recommended Dog Safety Mask for Foxtails, Grass Seeds, Bugs and Debris | Breathable, Lightweight, Patented Design | Multiple SizesAuthor: OutFox Brand: Out Fox Features: Black because its the easiest color to see through Much bigger than the dogss head to insure good air circulation inside Lightweight so it doesnt push down on the head Stiff enough to stand away from their face and only touches the neck and top of the head Flexible enough so when they lay down the dog still wont notice it Neck opening is not tight. Designed to be adjusted the same circumference as the upper