You are looking at a lightly used pair of the original APS Mantaray Fins in size Medium-Large. Very good used condition. These Fins are lightweight and smaller than most Fins on the market. Don't be fooled though by their smaller size, they provide more than enough power to get you through the water with ease, without causing your legs to cramp up. A unique design, they provide power on both down and upstroke as the water is channeled through the openings and multilayered sections of the blade which is there to increase surface area. Very similar to the Hollis F2 (Hollis bought out John, the original designer who started APS). These are the sought after original Fins withe the preferred softer composition to the redesigned F2 Fins. They feature a simple, user friendly adjustable heel strap that works very well. Search online and you will see glowing reviews on these Fins everywhere. I have another pair so do not need them, time for someone else to enjoy. Cash only, you pick up. Please see my other items for sale. Thanks for looking. *** If contacting me by email, please include your phone number so I can call/text you, or check your email Spam folder. I reply quickly, but it seems my emails may be going to interested parties Spam folder. Thanks