Top features: - Waterproof and fog-free performance from nitrogen purged binoculars - Soft, non-slip, rubber armour for a firm grip Waterproof, fog-free performanceEnjoy waterproof and fog-free performance from the Bushnell H20 8 x 42 Roof Prism Binoculars.The O-ring is sealed and they have been nitrogen purged to ensure a totally moisture-free performance.Soft, non-slip, rubber armourThe Bushnell H20 8 x 42 Roof Prism Binoculars is easy to keep hold of out in the field thanks to its soft textured grip.A non-slip rubber armour helps absorb shock while the multi-coated optics provides superior light transmission so everything looks clear and crisp.