Have you ever gone to a sports game or the beach, but not had a way to bring a drink with you? Never fear, just pick up some Reef Dram sandals. Doesn’t make sense to you yet? The sandals have a built-in flask that can fit 3 ounces (or 3 shots) of whatever liquid your heart desires.

The sandals feature a canteen with a screw that can be opened up using an included key, a mini-funnel, and measuring bar to see how much liquid you have left. You can pick a pair of these up for about $45.

These are in succession to the Fanning’s which feature a bottle opener on the bottom of the sandals. My roommate has these, and loves them.

This is a great example of a company thinking outside of the box. While the products aren’t the most intuitive thing in the world, it’s enough to create a buzz and generate a ton of sales that otherwise would not have had any attention.