Not so long ago, rumors of glasses with live stream data updating straight into your line of vision would've still been relegated to futuristic movies and science fiction novels. Now, they're changing the way we train. Mount Garmin's Varia Vision onto either arm of your sunglasses and see metrics like speed, distance, and cadence cleanly arranged in front of you on the 428 x 240 pixel display, delivered from your bike computer. Choose from up to four different fields to look at as you ride, and receive navigational updates to keep you looking up at the road rather than distractedly glancing to look at a bar mounted computer every few minutes. Weighing under 30 grams, the Varia Vision won't feel cumbersome as you ride, and it's built to withstand surprise rain showers with a waterproof rating of IPX7. Addressing criticisms that technology dulls athletes' awareness of the world around them, the Varia Vision is equipped to inform you when a car is approaching from behind, and it was built to communicate seamlessly with existing Garmin computers using ANT to give you uncluttered data you need without obstructing your vision, with the rest displayed on the computer screen.