1.High-Quality Silicone Mouthpiece: The mouthpiece of the swim snorkel is made of durable, food-grade, odorless silicone material, soft and comfortable. There are convex materials on both sides, which are soft in texture, convenient for teeth to bite, can fit tightly in the mouth, and are tightly waterproof. The one-way purge valve prevents you from inhaling water when turning over, allowing you to train and enjoy swimming with peace of mind 2.Adjustable Head Bracket: The bracket has soft head protection padding for comfortable wearing. The position of the bracket and the length of the strap are both easily adjustable. The swimming snorkel eliminates the need to turn the head to breathe, helping swimmers focus on technique and body posture, and is suitable for a variety of swimming styles, such as style, breaststroke, backstroke, butterfly, etc 3.Light Weight And Smooth Air Circulation Of Swimming Snorkel: Our swimming snorkel weighs about 200g. Swim training snorkel is very light and comfortable when swimming. Compared to top dry valve snorkel, our swimming snorkel is lighter in weight, better air circulation, and facilitate smoother breathing 4.FOR FAST SWIMMING: This swim snorkel features a sleek hydrodynamic design that allows swimmers to swim effortlessly with minimal water resistance. Whether you're a beginner, intermediate or advanced swimmer, it'll help you become more efficient in the water