Extremely durable - eye-cups may not be a fit for all faces - Steiner Military M1050r 10x50 Porro Prism Rangefinder Binocular

Great optical quality and exceptional durability, and I'm overall very happy with their performance in the field for bird-watching, spotting wildlife, etc. However, I feel that I'd benefit if I could get my eyes closer to the binoculars when using them, but the eye piece frames and my brow interfere, leaving me a few millimeters farther away than I'd prefer. As a result, I struggle to see the entire field of view in the binoculars. I think this comes down to individual faces, so others may not encounter this issue.