I Found the Elusive "Cool Socks" All the Trendy Kids Are Wearing

Old Navy Quarter Crew Socks 3-Pack for Women ($6, originally $10)

These Old Navy socks are a a little on the thin side, but they're super affordable, which makes a difference if you tend to wear socks hard (I do) and want to stock up on several packs without hurting your wallet. The white pair has a subtle ribbing, which looks cute with a put-together outfit, but a little out of place with athleisure. You can also opt for a non-ribbed, patterned option.