DR R1 OTG (+ Bonus Lens) Reused Goggle. The latest goggle in the mid is the all-new R1 OTG. Taking design inspiration from the RVX Mag OTG, the R1 is perfect for those seeking a simple and polished look. As the namesake implies, the R1 is OTG compatible and features a number of features like armored venting, silicone strap backing, and of course, Lumalens color optimization.