In the Pentax 62211 UCF-X II 8×25 Binocular Pentax made use of the same technology as in the case of the Pentax 62608 UCF 8×25 Waterproof Binocular. That goes for the single body housing with internal focusing and synchronized eye-piece adjustment facilitated by a revolutionary dual-axis design, the fully multi-coated BaK4 lenses, close focus ability and eye relief.
The one major difference, unfortunately, is the matter of weatherproofing. This model is not weatherproof.
It is also slightly bigger with dimension of 5.6 x 5.2 x 3 inches, but should still pass as a jacket pocket binocular, especially considering the fact that it is not a roof prism design, but a reverse porro. As compared to the the Pentax 62608 UCF 8×25 Waterproof Binocular it is more lightweight at 10.6 ounces. This is actually amazing; in this regard it actually competes with the pocket roof prism binoculars. All in all, small wonder that it has received 5 stars rating from 5 out of 6 customer reviews at Amazon.