At first glance, many might think this is a wetsuit, but it’s actually a thermal survival suit. While it has some waterproof features, it cannot be used for diving. Its exaggeratedly bulky design makes swimming nearly impossible—at most, it lets you float on the water’s surface. This has become a business opportunity for travel companies, who offer trendy experiences of floating in icy waters. The suit is made from nylon waterproof fabric and rubber, designed to keep your head from tipping backw