Hello Robert, Thank you for your inquiry! Of your Pure Instinct by Mares Razor Full Foot Free Dive Fins do not fit properly, as long as they have not been in the water and you have the original packaging, you can return them for an exchange or refund. Please follow this link for our Returns Form:
http://www.scuba.com/rma.asp If you would like to place an order or have questions about our products, please contact one of our certified Dive Instructors at SCUBA.com by calling 800-247-2822 <> 949-221-9300 or e-mail us at: info@scuba.com