If you go to this website here they sell the goggles that are in Pokemon.
http://www.gogglesandglasses.com/index.html
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You get the go-goggles from your rival after you defeat Flannery.
After you get the go-goggles, you have to go and beat your dad at his gym. :3
They are given to you by steven when you arrive at forrtree city.
You need to get the go-go goggles.
You get them after defeating your rival.