If you're the type to see math in everything around you, or if your thoughts tend to wander off to proofs and problems, then this is the towel for you. Complete with visualizations of some important math equations that fundamentally changed the way we understand our world, it's the perfect way to steer conversations toward math-y things while you enjoy your time at the beach or the gym.

If you've never used a Turkish towel, you're in for a real treat. These organic cotton towels are super absorbent and quick drying, so you're not stuck packing a heavy, soggy mess into your bag on the way home. They're nice and soft, and will just keep getting softer and fluffier the more times you wash them. They're flat-woven, so you won't carry sand home from the beach. They pack small, so you'll have plenty of space left in your bag for everything else you need for your adventure. Cool evening after a hot day? Wrap up in one of these and make a fashion statement. Concert on the lawn? These make great picnic blankets.