Swim fin attachment

A swim fin, comprising:

• a fin blade having a distal edge and a top surface;
• a bootie fixed-to the fin blade, comprising:
• a foot pocket configured for receiving a user's foot and at least a portion of a user's ankle, comprising:
• a first portion having a first elastic characteristic, the first portion connected to the top surface of the fin blade;
• a second portion having a second elastic characteristic, the second elastic characteristic being greater than the first elastic characteristic, the second portion disposed at least on a portion of the top surface of the foot pocket;
• an element that encircles at least a portion of a user's ankle, the element comprising a closable opening;
• a strap system, comprising:
• one or more straps comprised of a substantially non-stretching material, the strap system having a first end and a second end, and wherein the first end connects to the bootie forward of the user's ankle off of a latitudinal centerline of the bootie, the strap wraps around the user's ankle and crosses itself on top of the user's foot, and the second end connects to the bootie on an opposite side off of the latitudinal centerline of the bootie than the first end;
• a tightening mechanism, configured to tighten the one or more straps around the foot pocket;
• and
• a connection mechanism to connect the one or more straps.

A swim fin comprising:

• a fin blade having a distal edge and a top surface;
• a bootie fixed to the fin blade, comprising:
• a foot pocket configured to receive a user's foot and ankle, the foot pocket attached to the top surface of the fin blade;
• an element that encircles at least a portion of a user's ankle, comprising a closeable opening;
• and
• a strap system comprising:
• a first strap having a first end and a second end, and wherein the first end of the first strap connects to the bootie forward of the user's ankle off of the a latitudinal centerline of the bootie, and the first strap wraps around the user's ankle and crosses on top of the user's foot;
• a second strap having a first end and a second end, wherein the first end of the second strap connects to the bootie on an opposite side off of the latitudinal centerline of the bootie than the first end of the first strap and crosses on top of the user's foot;
• a connection mechanism for connecting the second end of the first strap to the second end of the second strap;
• a tightening mechanism to tighten the strap system;
• and
• wherein when connected the strap system pulls the user's foot into the foot pocket toward the distal edge of the fin blade and toward the top surface of the fin blade.