The High Definition Waterproof Binoculars and the housing is purged with dry nitrogen gas to prevent fogging. These binoculars are constructed to withstand harsh treatment, while keeping weight to a minimum.

Specifications

Waterproof and fogproof
Multi-coated optics
Objective lens diameter: 30mm
Weight: 33 oz
Dimensions: 5.30"L x 6.30"W x 2.1"H