Kilted_John has the right idea - use soccer socks.
To view a sample use this ebay link:
http://cgi.ebay.com/NEW-Adidas-Soccer-S ... 43a3215386
The adidas line of socks has some 20 combinations of color and design.
I have a few of those as well as some made by Wilson.
They are heavy duty enough to survive hiking and other athletic uses.
You could also consider what is on the other side of asile in the womens section - Slouch socks.
They are not as tight or form fitting on the lower leg but they can be pulled up to the knee and unless you are doing
repetitive jumping jacks for the most part they stay put. The material however is softer and will likely snag on underbrush.
I have some of those also and frequently use a garter for flashes to aid in keeping the sock in place over the leg calf.
The only real way to prevent leg injury is to wear heavy leather chaps - so you all be careful out there !
Even at that just because you are wearing Superman socks does not mean that you are invulnerable - steer clear of the
thorny thistles and the barb wire fences.
Wear something less expensive than dress kilt socks for playing around in the Outback.
"Kilted-Wisdom-Been-There-Done-That"
rm