Strap on this Lunocet Monofin, and you're instantly the fastest swimmer in the world. You’re not going to be moving through the water at 60mph like a sailfish, but its 8mph top speed would beat the measly 5mph of Olympian Michael Phelps. Best of all, you won’t need Phelps's size-14 feet or 12,000 calorie-a-day diet, either. Idea: Let's have an Olympic swimming event featuring these Monofins, the next logical step in sports tech.
Despite its sturdy construction, the Lunocet Monofin is relatively light for its size, weighing just 2.5 pounds thanks to its silicone-encapsulated carbon fiber structure and aluminum/titanium footplate. All that ultra-light tech makes it expensive, though, costing upwards of $1,800. That steep price might be worth it, because Lunocet says this contraption lets you act like a jumping dolphin at Sea World, creating “propulsion so powerful it can breach a human out of the water.” Whoa.