The ZS1 is the smaller version of the Z1 frameless mask by Cressi. Following the steps of the successful Frameless model, which has pleased many divers with its low internal volume and ease of transportation.

The frameless design combines high-quality silicone directly onto the lens in a simple and functional manner. This system ensures good visibility in all directions, especially towards the sides.

The straps are rotating and have millimeter adjustment, ensuring a perfect fit on the face. The low internal volume and low profile of the mask provide a very good field of vision.

Before the first use of the mask, we should apply white toothpaste (not gel) internally on the lenses and the silicone of the mask. Typically, this toothpaste contains particles that assist in cleaning. The pressure we apply should be gentle to avoid leaving marks on the lenses. We let the toothpaste sit for at least 2 hours, and then we thoroughly rinse the lenses and the interior of the mask with lukewarm water. Ideally, before each use of the mask, we use an anti-fog solution.