Can you breathe underwater with this snorkel, and if not can you breathe underwater with any other type?
Bill(Certified Scuba Instructor at Scuba.com):
These are designed to use with a mask. With the mask on, snorkel in your mouth you can lay face down in the water and breathe. If you go underwater the snorkel will fill with water and must be cleared before using it at the surface again.
Does xs mean "extra small"?
Arthur(Certified Scuba Instructor at Scuba.com):
Hello, XS is just the manufacturer.
More About This Product
Value priced and built rental tough Traditional open top Easy to clear with self-draining purge valve Comfortable curved mouthpiece design Flex section for comfortable positioning Improved quick-release snorkel keeper for easy removal from mask
Mask and Snorkels
After each use, rinse mask/snorkel with fresh water and air dry in a cool area out of direct sunlight. Store your mask in the box it came in. Do not leave it in hot places like the trunk of your car, etc.