Lifeproof book again anti shell shock that "grows" too much already imposing Iphone 6 more. The transparent back reveals the color of the back of the smartphone. The "fingerprinting player only works with the index and will not work with the 2 other footprints that I had programmed (thumb and finger). I have not tested the tightness. There is a seal that goes around the phone. The price is high but considering the price of 6, I think it is worth it.