The Ondina mask is the smaller version of the Onda. It's a single tempered lens mask suitable for young people and is designed for snorkeling, swimming and scuba diving. The mask skirt is made from soft hypoallergenic transparent silicone with a double feathered edge that gives an excellent seal on many face types. The Top snorkel is a modern, small semi-dry snorkel, designed specifically for young people. The tube is made from a transparent, contoured and flexible material. The quick-release snorkel keeper system allows height adjustment for comfort. The top end of the tube ends with a semi-dry splash-guard to prevent water from entering the tube even in rough water. The angled 100% high-quality silicone mouthpiece is designed for extreme comfort even during extended use. The top snorkel has a large internal elliptical one-way purge valve at the bottom for improved drainage.