This snorkel can fold into a compact size. It's perfect for free diving and spearfishing. Silicone Material: The mouthpiece and corrugated flexible tube are made from the premium silicone material. With this special silicone material, the user feels more comfortable when they bite on the mouthpiece. The silicone corrugated flexible tube can adapt to any angle depending on the shape of your face. Traditional J tube: The traditional J tube is low volume snorkel that is extremely convenient to travel with it. Simple Pull Buckle System: It’s simple to slip in the side strap from the mask into the buckle system.