Market size: Large (> 10,000,000 people)
Investments required: Large (> US$5,000,000)
Many swimmers love waves, yet waves may be dangerous. For instance, they often come with a powerful back current. As wwve lovers don't like to wear traditional life vests, many of them lose their life to a back current or other dangers. Ultraslim life west may solve the problem and save many lives. When deflated, it wouldn't prevent a swimmer from enjoying waves. If a back current took a swimmer far from the shore, he/she would inflate the life west and reach the shore safely.