What is TPU material and why is it used in shockproof cases?

Thermoplastic Polyurethane (TPU) is the industry standard for shockproof cases. Let's compare tpu vs polycarbonate case behaviors to see why they are paired together.

* **TPU (Elastic Bumper)**: TPU is highly flexible, rubber-like, and absorbs shock waves. When your phone drops, the TPU bumper compresses, dispersing the impact energy before it reaches the frame. * **Polycarbonate (Rigid Shield)**: Polycarbonate is a hard, rigid plastic that prevents sharp objects from piercing the back glass of the phone.

Pairing a TPU bumper with a polycarbonate back plate creates a highly effective hybrid protective cover.