Smaller, lighter tube makes the snorkel more stable at high speeds
Small mouth piece makes it more comfortable and less claustrophobic
No purge valve allows swimmers to do flip turns while wearing the snorkel
Mouth piece is made of surgical silicon and removable to allow for cleaning as well as prevent injury in the event racers run into each other or bite through the mouth piece
Small overall size makes it comfortable to use for age group swimmers all the way up to masters swimmers
YSTI-1 has smallest tube on market to assist with hypoxic training drills
Head piece uses patented once piece open ring design which makes it more comfortable to wear the snorkel for long training sessions
