Our individual stickers are all waterproof, scratch proof, Sun/UV proof and safe to use on surf boards, cars, bikes, skateboards helmets, planters, waterbottles you name it it will endure. For our sticker sheets, we do have two waterproof options, but these stickers are not quite as durable as our individual vinyl stickers. We have tested them on our waterbottles under washing conditions and though the colors do not fade or smear we do not recommend using them on items that will be seeing a lot of moisture. The waterproof nature of our sticker sheets is for the instance that you spill or have moisture on a rare occasion, preventing the sticker from smearing or being damaged like a paper sticker might be. Please note: CLEAR STICKER SHEETS are not waterproof.