Lulu Lemon leggings are really the Cadillac of leggings. Although they are known to be a little bit on the pricey side, it's totally worth it, the quality is really outstanding. Personally, I have a pair I bought in 2010 and they are still holding strong.
But you don't have to pay full price! You can actually get these premium leggins and activewear on discount, you just have to know to check the "We Made Too Much" section of the website, where you will find tons of items at great prices.
Here are a couple leggings from the "We Made Too Much" section that caught my eye and are all at super affordable prices. If you're not a fan of those colors, don't worry! These styles are definitely available in more colors!