Tech21 cases are extensively tested for the perfect fit and impact resistance. The cases are made out of Flexshock material, which absorbs and spreads the shock when you drop your phone. This minimizes the chance of damage. On this page, you'll find all kinds of different phone cases for Apple and Samsung smartphones. Go for a back cover if you want to protect the sides and back of your phone. Would you prefer complete protection? A book case will protect every side of your phone.