If you're already lost, these won't help you read a map. But for those times when you're trying to get just a little MORE lost, well, you're in for a treat.
I'd used other companies diffraction glasses, that was before I got a pair of Emazing's diffraction glasses which create a much cleaner and more powerful effect, the spiral glasses in particular are the ones I use the most because they create a cool effect without obstructing my vision the way the prism glasses can, I like this because I'm a glover so with these I can get light shows with a boost and still observe all the technique that goes into the show, good stuff! Stay amazing Emazing. PLUR
They were sold out in every color and it delayed my whole order a solid week to two weeks because they were totally out of stock. I missed out on having fresh gloves for ultra because you guys couldn't send my order despite the missing item. So lame. But it happens I guess