UNDR goggle straps are compatible with nearly every mask on the field, including JT Flex7, 8, and Proshield; Virtue Vio's; GI Grillz and Profiler's; HK KLR's; Dye I3 and I4; and Push. They may not fit or work with every mask.
Each strap is a standard 9 inches long and is assembled with butterfly ends. Insert the ends into the slots where the existing straps are installed. Some goggles use clips to secure the straps. For a proper fit and safe use, insert the butterfly ends completely through the slots.
