The OtterBox Preserver Series for the iPhone 5s is a promising heavy duty case guaranteed to protect you phone from just about any possible damage. Starting at Only $89.95 , this case has an easy Two-Piece snap case for really easy assembly, and major protection.

Some of the highlights:
Watertight Earpiece Mesh Covering

TPE Overmold

Polycarbonate Lid

Watertight home button / fingerprint reader membrane.

Transpparent Hard-Coated (Scratch Resistant) Screen Protector.

Watertight Port Plugs.

Polycarbonate Back.

Watertight Gasket

Internal Memory Foam Backing

Overmolded Synthetic Bumpers that absorb impact and force

Internal foam giving additional cushioning, holding the iPhone 5s in place.

Lanyard that is adjustable.

Fully Waterproof up to 2M for 30 min.

Drop Proof / Dust proof.