(I did no study) But IMO, the best is nether hard or soft, but a hybrid of the two. Both have different properties that do different things. Hard: Deflect imp

(I did no study) But IMO, the best is nether hard or soft, but a hybrid of the two. Both have different properties that do different things. Hard: Deflect impact Distributes impact Soft: Absorbs impact The key is to slow impact as slow as possible and to distribute it over the largest area to limit the total force to any given point. For this you need both hard and soft. I do have statistical evidence tho that 10/10 times my phone did not break when i did not drop it :). /me goes caseless.