Swim smarter with the Arena Powerfin Fit. Using flippers improves kick efficiency and gets your heart rate higher when you have less time to train in the pool. Arena has put a lot of thought into designing these fins so that they’re compact, easy to pack and comfortable to wear. Made of extra soft rubber to prevent cramps, this swim aid has an adjustable heel strap to ensure optimal fit and ankle flexibility. Plus they can do double-duty for snorkeling. Finished with two-tone styling and our signature logo.