All Swarovski s-eyepieces are waterproof/submersible and compatible with all Swarovski scopes allowing you to be fully equipped for every situation. The 20-60x zoom is the only watertight zoom eyepiece on the market. The fully adjustable eyecup with its large diameter opens up the full field of vision even for eyeglass wearers, providing a very comfortable viewing feel. All eyepieces are fitted with an integrated, quick-release lens cover. The new S-lenses also come with the unique SWAROTOP coating for bright and contrast-rich images, whatever the light conditions.