This snorkel is designed specifically for the needs of freedivers or for the scuba divers that prefer the standard bore tube. The ventilation is excellent, because the tube is shorter, has a large bore and is a well-connected anatomical shape without sharp curves. The tube is made from flexible, black material, and a soft silicone mouthpiece fits in to the end; this is a swivel mouthpiece so it can be placed at the correct angle for comfortable and long use. The height adjustable mask strap holder has a modern catch.The America is designed and manufactured in Italy by Cressi, an Italian brand pioneer in scuba diving, snorkeling and swimming equipment since 1946.The product is covered by a 2-year limited warranty.