Introduced in 1970. Functional and versatile, the Winter Frost White collection is a fundamental basic that you can use with your Corelle patterns embellished with designs — perfect in its simplicity, and pure in its form. Crisp, clean and clear white that's translucent yet touch. Simple yet stylish. Pretty yet practical. Ageless in appeal and adaptable to any type of meal, any time of the day. Microwave and dishwasher safe.