Masks – Polycarbonate Lens for safety. Lightweight Delrin ™ and advanced lightweight plastics frames. Composite feathered edge mask skirt seals comfortably and distributes sealing pressure. Pliable non feathered nose piece for ease of equalization and mask clearing. Flexible and adjustable mask strap. National Geographic Snorkeler Snorkel with integral snorkel tab, orthodontic designed mouthpiece and wide bore breathing tube for air displacement/exchange. Designed to fit smaller faces and kids. Great for fun in the pool.