Here's the simple truth: Round beach towels are amazing.

If you haven't heard of round beach towels (a.k.a. roundies), they are large, circular beach towels usually featuring cute designs, including round foods like watermelons and doughnuts. According to The Cut, this Instagram-worthy trend originated in 2013 when Australian brand The Beach People invented roundies and saw them immediately sell out. The craze spread to the U.S. a few years later, when roundies went viral on the internet.

ROUND TOWEL #today #beachday #whitesandbeach #roundbeachtowel

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So, why are roundies superior to your average rectangular towel? From a practical point of view, the large size and circular shape mean you have lots of room to move around and flip over. With a rectangular towel, you're always struggling to stay on a narrow strip of terrycloth to avoid the sand surrounding you on every side, threatening to stick to your wet skin. If you want to turn over, you pretty much have to do it in place. Who decided that a tiny rectangle was the best size and shape for a towel anyway? Why have we put up with this nonsense for so long? Round towels are logically the better choice.

You may be asking yourself: Why not just have a large square towel? Why does it have to be a circle? And the answer is: Stop being a Debbie Downer. They're round because it's fun and whimsical and it means you can have a pizza-shaped towel. (In all seriousness, though, big square beach towels do exist, and they're great. They just haven't blown up on Instagram the way roundies have.)

Having a round towel makes it easy to spot your group at the beach: Your roundie will stand out among all those regular ones. It's also big enough to share. What's more, it can easily double as a picnic blanket, a tablecloth, or even a shawl for walking on the beach (just fold it in half first).

In conclusion, save yourself from the clutches of your tiny, rectangular towel and buy a roundie. Here are a few of our favorites:

WATERMELON; $68

ban.do

Find It: ban.do

DOUGHNUT; $20.99

Amazon

Find It: Amazon

MANDALA; $19.99

Amazon

Find It: Amazon

PIZZA; $21.99

Amazon

Find It: Amazon