Shop iPhone XS Waterproof Cases by Skinit. Each Waterproof iPhone XS Case is built to protect your iPhone XS from water, snow, sweat and dirt. Keeping your iPhone XS safe and looking brand new. Each Skinit iPhone XS Waterproof Case is made with a fully-enclosed water proof phone case construction that maximizes cell phone functionality and water proof protection. Browse all waterproof phone cases for iPhone XS and buy the best iPhone XS Waterproof Case for you.