Custom X Fin Cinch - Choice of Color 1 Pair of Custom X Fin Cinches (combination of a fin pad and fin tether) Neoprene Fin Pad provides comfortable padding of your ankle from your fins Adjustable Velcro Fin Strap prevents loss of a fin if it comes off of your foot Comfortable and lightweight. Fits any brand of swimfin. Made in U.S.A.