What is the difference between the Manta SLIM Mask and the Original Manta SLEEP Mask?

Good question! Both masks use the same eye cups which are tapered on the sides to ensure your comfort regardless of your sleep position. The only difference is in the head straps. The Manta SLIM Mask uses an above-the-ear strap that’s mostly made from durable, anti-stretch elastics so it’s perfect if you want a sleek, barely-there feel. 

On the other hand, the Original MantaSLEEP Mask uses a strap that’s mostly made from cotton polyester. It has triple-reinforced elastics on both sides, but since the strap isn't pure elastics, it can be worn above and over the ears.