Are there decent sunglasses that don't cost too much but can be used in running and jumping and driving, but also can hide my eyes completely but I can see thru them well?
go to a lenscrafters, they make custom glasses that would be great or all those neds. you can customise them, and per feature you will pay less than justt buying one or 2 pair from a store taht dont have everything u need that will break and get lost.
Oakleys are a little high priced (but still affordable). They are sporty and also have very dark shades.
Yes Oakley reflect the brand's sporting heritage with distinct styling and an emphasis on innovative form and function, try this cheap Oakley Sunglasses
http://www.sunglassesuk.com/p2/oakley_sunglasses/oakley-fives-4-0-2009-Edition.asp
THIS IS BY FAR THE BEST/CHEAPEST PLACE:http://www.teamspyder.com/ (aka spyderoptics.com)
they are italian made as far as i know and specialize in active sports eyewear as well as casual. they are mostly under $20. and if u go to the philippine section....they have dozens more models than any other country that u can click. dont be scared if u see Pp450.00 as the price because the philippine peso is like 42 to the american dollar (P42.00=$1)
Oakley is a good choice when it comes to sport sunglasses. Try this one from Oakley: http://www.sunglassesuk.com/p2/oakley_sunglasses/oakley-crosshair.asp
It is perfect for what you are looking for.