U.S. Divers Proflex FX Fin with Mesh Carrying Bay, Blue, Medium Form meets function with this beautifully designed full blade fin Features dual composite material for superior snap and thrust Soft and comfortable foot pocket has easy adjust strap for custom fit Available in three sizes - Small (Men's 4-7, Women's 5.5-8.5), Medium (7-10, Women's 8.5-11.5), and Large (10-13, Women's 11-5-13.5) Convient Mesh Carrying Bag Included