Amazon has this Waterproof Cell Phone Case for $2.03 with FREE shipping.
- Protects your mobile phones / PDA against water, dust, dirt and sand
- Dedicated soft TPU with tensile strength, acting as a buffer with drop resistance protection
- Color: Hot Pink Material: PVC Fully expanded size: approx. 132 x 85 mm / 5.2 x 3.3 inches
- Includes: 1 x Waterproof Bag Case, 1 x Armband, 1 x Lanyard
- Waterproof rating: IPX7 (Protected against water immersion for 30 minutes at a depth of 1 meter).
Although I wouldn’t recommend submerging your phone in water, I do have this case and love using it for hiking and beach/pool trips. It really helps keep out the dust, dirt and water splashes. It’s nice to have the added protection as a “just in case” measure.
Pricing was current when the post was published, however Amazon prices change often, so please check before you buy.