The Aqualung Wraparound snorkeling mask has tons of different features and a stealthy, sleek looking design. The Aqualung Wraparound snorkeling mask uses 3 windows, and is designed mainly for military and search-and-rescue divers that could use the wider vision. It's frame is made of stainless steel, and the strap buckles are durable in all types of harsh environments. Additionally, this mask is stylish and sleek, providing a modern look for the modern diver.