Go for a swim with the TUSA Visio Tri-Ex Combo. This combo includes a UM-31 mask and a USP-250 snorkel constructed from pure silicone and polycarbonate materials for durability. The panoramic design with domed side windows and ClearVu tempered-glass lenses provides a wide field of view for increased visibility. Hyperdry Elite Dry Top technology helps keep water out of the snorkel, and the high-flow purge valve and drain chamber allow quick clearing.