gear4 D3O Booklet for Galaxy S7 black


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  • Two-year guarantee


  • Protects against falls, bumps and bruises
  • Additional scratch protection for your display
  • Finely textured surface for a good hold
  • Standing function
  • Practical magnetic seal
  • D3O® is an innovative high-tech material that protects items when they are bumped, knocked or dropped
  • Integrated card slots:

Product description

Smart technology: the GEAR4 BookCase uses D3O®. This high-tech material provides superior impact protection and is used by Olympic ski teams and the military. D3O® is integrated into the GEAR4 cases, offering the ultimate protection for smartphones that are bumped, knocked or dropped. GEAR4 is the first case brand to use the latest generation of D3O® delivering more impact protection per cubic millimetre than other leading materials. This enables GEAR4 to create ultra-slim, stylish and protective cases that make a difference to your smartphone and your life – whether it's in making a great impression or surviving little accidents.


D3O® is a scientifically tested high-tech material that offers perfect protection for your smartphone. The idea behind D3O® is as clever as it is simple: If your smartphone falls to the ground, the impact is strongest at the point of collision. D3O® absorbs this concentrated impact and distributes it, dispersing the energy. Damaging shocks are neutralised before they can reach your smartphone. It's no surprise that D3O® is being used where it matters most. In protective clothing for motorcycle racing for instance. Or in helmets for professional footballers.


What is D3O®?
  • D3O® is a patented technology for manufacturing a soft, flexible material that absorbs shocks very well and is recognised as an "intelligent material".
  • D3O® has a unique molecular structure: under normal conditions the molecules move freely making the material soft and flexible. If there is any impact, however, the molecules link together to absorb and distribute the energy – reducing the force of the contact – before returning immediately to their flexible state.
  • D3O® has strain-rate sensitivity, so the harder the impact the stronger the reaction from the molecules, creating excellent protection.

Terms of contract

product guarantee period: 24 months