– Fully multi-coated optics – Waterproof to a depth of 1.5m for approx. 3 minutes – Nitrogen-filled, prevents moisture fogging in the optics – Durable rubber armor – Removable eyepiece caps – Dustproof caps – Phase-coated BaK-4 prisms – Removable metal eyecups – Rain cover – Light weight thanks to polycarbonate – carrying case – carrying strap – lens caps The Sierra range of binoculars from Barr & Stroud are characterized by advanced technology and excellent optics. These products are waterproof to a depth of 1.5 meters for up to 3 minutes. This calls for a high degree of qualitative construction. This Barr & Stroud product can be used outside in any weather without any problems. This is possible thanks to the robust rubber coating, which also protects against possible shocks and bumps. All Sahara binoculars include tethered lens caps, rain cover, neck strap and protective case.