Binoculars with a waterproof and condensation-free design by means of nitrogen gas filling. Waterproof (up to 1 m deep for 5 minutes) and free of condensation due to nitrogen gas filling High-eyepoint design for a complete image, also for glasses wearers Rubber twist-and-slide eyecups for comfortable setting of the correct distance for the eyes Lenses have a multi-layer coating and have a large diameter for excellent color reproduction and clarity Rubber reinforcement guarantees shock resistance and a secure and comfortable hand position Lenses made from eco-glass, so free from lead and arsenic