IST Stainless Steel Spring Fin Strap with Metal C Clip Rust resistant stainless steel spring straps are ideal for technical and recreational diving. The main advantage ot these straps is that when fitted, fins become easier to put on and take off. There are 3 buckle designs and different lengths to choose from. (approximate spring length) - S: 17.1cm(6 3/4") - M: 19cm(7 1/2") - L: 21cm(8 1/4") - XL: 22.8cm(9")..Read More