Method Seven Resistance SUN Polarized Greenhouse & Outdoor Glasses Method Seven delivers the world's first and only outdoor grow lenses and they are fabulous for everyday use as sun glasses. Typical sunglasses filter out too much of the green and red spectrum for ideal observation of your outdoor plants. Improve your vision and enjoyment of your outdoor grow with with our sun lenses formulated specifically for outdoor gardening. The Method Seven SUNp lenses are polarized,helping cut glare reflected from foliage and enhancing ability to accurately discern color. Manufactured for Method Seven by Carl Zeiss using our unique lens technology. The Resistance Frame is an Italian made base 8 wrap-around frame featuring flex hinges and limited-slip rubber accents. This is a high quality pair of glasses that is excellent for outdoor gardening, everyday where, fishing and snow sports.