Like the name says, these binoculars are made for water. Splash them, soak them, dunk them - and theyll emerge 00% fog free and dry inside. Perfect for skiers, snowmobilers, anglers and kayakers. True waterproof construction and a rugged, non-slip rubber design makes the H20 series a simple choice for those whose lifestyle borders on the hyper side of active. O-Ring sealed and nitrogen-purged for waterproof/fogproof protection in any season, both the fully and the multi-coated optics render bright, clear images. Take them with you - everywhere.