All Strokes - Kick Overload
There are a couple ways to develop a great kick for swimming. One way is to kick a lot, and another is to add resistance to your feet to overload the legs.
Why do it:
The kick in each stroke is an integral part of the complete stroke. Using tools such as the DragSox allow you to get more work done in a shorter amount of time.
How to do it:
1) Slip a pair of the DragSox onto your feet. They slip on easily, so this doesn't take long.
2) Push off and start kicking. That's pretty much it... the sox do all the work.
3) You can vary your strokes, starting with flutter, and switching to dolphin or even breaststroke.
How to do it really well (the fine points):
You may notice that some swimmers barely move with the DragSox on, this makes it tough to set intervals or even keep them encouraged. Being creative with how you use tools like this is key. Using one at a time, or limiting the use to when you're swimming will still overload the legs, and also allow the swimmers to keep working.