The Sawfly Glasses aren't exactly new, but that doesn't make them any less great. They meet and exceed all the Military ballistic requirements and thus have become US military approved eye-pro. I display here which appears to be the "Deluxe" Kit with a Soft carry case. The frame part is semi-flexible with adjustable arms. The arms have 5 positions which allow adjustability to most heads.
When I first put them on I thought I was going to go crazy from temple pressure, but soon found I could easily adjust the arms for a comfy fit. Even then there are 2 frame sizes of regular and large. The tips have rubber to help stay on your head and on optional strap comes with the kit which snaps onto the arm ends. The Sawflys already stay on one's head pretty well, but it is nice to have the strap if you plan on some vigorous activities. Changing frames is easier than expected in which one places them in the frame slot and "rocks" them in or out of place. It is nice that the nose pieces come with each lens and can be interchanged. The nose pieces also connect with Revision's prescription inserts like most of their products. Peripheral vision is overall great. While looking directly forward, I just see hints of the frames in the top of my view. Since an open lens design, the fog resistance is overall great as well, but I was able to fog them up during sports activities. They did however, unfog on their own with less activity rather than requiring a full wipe down. As you may have guessed, each lens type did its job well. The dark lens made for good sunglasses, yellow enhanced cloudy or dim light situations, and clear was good for unmodified vision. Although new, apparently tan frames are now available which have slightly different rubberized arm ends. Check out the revision site for all the detailed technical specs: