The pitaka aramid fibre case for iPhone 6 plus is Made of Aramid(Kevlar) a strong, durable and resilient fibre, five times stronger than steel at the same weight. The case is ultra-light, ultra-thin, slim profile, with thickness of only 0.65mm with an exceptional scratch resistant coating, providing pleasant and smooth touch. No metallic properties, more Eco-friendly. Absolutely no interference with Wi-Fi, GPS and signals.