As we’re in the midst of the back-to-school season, primary colors are popping up everywhere, fittingly so. (Not that anyone buys workout gear for class though.) Anyway, I love the classic combo of yellow, blue, and red, especially with the variety of hues available on the market. What’s your favorite?

Row 1: adidas // Row 2 & 3: Forever 21 // Row 4: Lululemon