This Alpen PRO binocular is a sleek roof prism design and is fully waterproof and fogproof. Long eye relief is great for eye glass wearers and the BaK4 multi-coated optics provide bright crisp images. These are great for any kind of viewing condition and won"t break the piggy bank. Eye piece rain guard, durable carrying case, and a soft wide neck strap are all included. Alpen backs this up with a lifetime warranty against defects in materials and workmanship.