Sometimes a device comes so close to being perfect that you’d be forgiven for not realizing that with just a single tweak, it can become, in actual fact, perfect. The Kindle Paperwhite is such a device, as an e-reader that Amazon has crafted so well that you pretty much never need look beyond for anything better. But while a regular book ends up with wrinkly pages after being caught in a surprise downpour on the beach, the Paperwhite fizzles – unless you get the Waterfi-treated Kindle Paperwhite.

The Waterfi version is shipped in the original Kindle packaging without any outward appearance of having been modified. It looks and feels like a Kindle, albeit a slightly heavier version, and interacting with its touchscreen is the same as you’d find with an unmodified version. But because of Waterfi’s special treatment process, its Kindle Paperwhite is completely waterproof – submersible to above 200 feet in either fresh or salt water, for any length of time.

READ MORE: This Waterproof Kindle Paperwhite Is Humanity’s Greatest Achievement | TechCrunch