ZERO GRAVITY Cosmic Clear iPhone 7 Case in Metallic Silver. ZERO GRAVITY Cosmic Clear iPhone 7 Case in Metallic Silver. Hard acrylic snap on iPhone 7 case. Direct access to all device features. Flexible plastic rim. ZERO-WA58. COSMIC. ZERO GRAVITY is a culture, a movement, and a brand with an identity. Our mission is not to try to make you look more cool, or more fashionable, but to only EMBRACE WHO YOU ARE individually. We do this by fusing fashion, pop culture, and technology together.