No fogging coating and One-piece lens for clear viewingThe anti-fog technology used for this swim goggles together with the single lens design of the snorkel mask giving you an broad unobstructed seaview while snorkeling, scuba diving and swimming. Not full face but good & wide view. No leaking, Perfectly matching faceThe flexible skirt with nose cover of swim masks provide a watertight seal for face. Unique ergonomic nose pocket covers your nose well and makes diving masks fitted perfectly with different face shapes so that the goggles won't slide with water. It secure kids who are enjoying such a great fun with underwater world. Simple head strap adjustment of snorkel masksThe scuba diving mask strap can be adjusted by easily pressing the buckle. Please adjust the adjustment strap to the correct position, too loose will cause water leakage. it will hold the strap securely in place without creeping down in the water after adjusting. Durable goggles for long-lasting performanceThe lens of scuba masks is made of solid material which can protect against water pressure and collision risks. Giving you a safer experience of swimming and diving. A great gift for men, women, kids, youth, teenagers, and juniorVarious colors to pick the most suitable scuba diving swimming training equipment snorkeling gear as a gift for your kids or youth, family, and friends. (Different face shapes for same age might have different needs for swim mask, you can also consider size L-Adults if you think size S-Kids is small for your kids.)