Dreaming of the creatures of the sea... an ocean delight to keep you dreaming of your vacation at the sea! Ethereal and mysterious with jellyfish that actually glow in the dark floating all over these blue knee highs. We love these socks for celebrating one of the coolest creatures around, the jellyfish, and their ability to (yes, actually) glow in the dark! Let these socks illuminate your awesomeness, too. You, wearing these glow-in-the-dark jellyfish socks? Undeniably cool. Anyone who tells you otherwise? They're just JELLY. Approximately fits women's shoe size 5-10 and men's shoe size 3.5-8.5. Content: 59% cotton, 38% polyester, 3% spandex.