What are the materials used? Are they harmful to the environment?

The eye cups of the mask are filled with self-hydrating zeolite beads that release 100% natural steam when microwaved. They’re often used for water purification and absorbent. While there are synthetic zeolites, zeolites could also be found in nature and the ones we’re using in the Manta STEAM Eye Cups are natural zeolites.For the eye cups’ fabric, we used a combination of TACTEL, polyester, nylon and spandex. The result is a fabric that’s quick drying, soft, lightweight, breathable, and easy to care for.

As for the head strap, its inner side (touching your face) is made with 100% cotton velour, which is lush, soft, and breathable. The outer side of the head strap is made with polyester for easy maintenance.