What every girl really dreams of: tracksuits. You can't beat a day in your sweats, watching your favorite TV show, and eating piles of delicious food. This is where a super-casual tracksuit comes in. Throw on a lightweight t-shirt underneath and some cozy socks for the full comfy effect. Usually consisting of two parts, tracksuits are best-worn matching, but you can easily swap out the pants or jacket. Women's tracksuits make lazy days exciting.