When you want the best, go with the Prism. This snorkel set comes with all the bells and whistles for your next snorkeling trip. The four-window mask offers a crystal clear, 180-degree panoramic vision so you won't miss a thing underwater. The adjustable fins, feature our Pivot-Flex technology so which allows a shorter fin to generate a tremendous amount of power with each kick. The Prism is perfect snorkel set for your next big tropical vacation or trip down to the beach.