Old Navy Cosy Patterned Slipper Socks These Old Navy Cosy Patterned Slipper Socks ($7, originally $13) are like a slipper-sock hybrid that offers the best of both words when you're staying inside. Image Source: oldnavy.gap.com Old Navy Cosy Patterned Slipper Socks $7 from oldnavy.gap.com Buy Now