Sentence examples for really waterproof from inspiring English sources

Is waterproof sunscreen really waterproof?

However, it is pretty beefy and since it's really waterproof it might be good for divers with a few thousand bucks to spend.

If it's really waterproof you want, check this out.

Water resistant generally stays on for about 40 minutes, with waterproof generally providing coverage for up to 80 minutes.[7] However, no sunscreen is really waterproof and will eventually wash off.

Or at least really, truly waterproof.

Good for Texting in the bath – it really is waterproof.

I'm not sure if this device is really a waterproof flashlight with a video camera or a video camera with a bright light.

The camera's party-trick — and the reason it caught my eye in the first place — is that it has really good waterproofing straight out of the box.

Their coats are warm, waterproof, and really really cool.

Mascara really should be waterproof during the summer heat to avoid sweaty raccoon eyes.

I've yet to try the headphones, so I can't attest to their quality, but I really like the waterproof Shuffle.