I copy pasted the 'features'. So, it does not fit over my regular prescription glasses and it also does not fit over my prescription sunglasses.
Pyramex G604T2 Features:
Fits over prescription glasses
H2X Anti-fog Lens
Indirect ventilation system prevents fogging
Includes interchangeable cloth and neoprene straps
Co-material goggle provides superior protection against dust entry and chemical splash
Thermoplastic (TPE) body with universal nose bridge is flexible and contours to the user’s face
The Capstone 600 Rx Insert can be clipped to this product to help with visual impairment.
Passes D3: Droplet and Splash Test — provides protection from droplets and splashes
Passes D4: Dust Test — provides protection from dust particles
Passes MIL-PRF 32432 High Velocity Impact Standards