The F1 roost deflector is a lightweight, form-fitting modular roost deflector designed to be worn over or under the jersey to provide optimal roost protection, functionality, and comfort. The exterior impact shield and plush bio-foam liner provide optimum protection against debris and collisions. Grid-style air vents provide additional air circulation to regulate core temperature. The F1 is designed to fit all EVS race collars and most neck braces with integrated loop straps to ensure the race collar stays in place.