They look like kilt hose Graham I usually wear my off white kilt hose with my brown boots and get the same effect. I unfortunatly forgot them in the dryer one time and my wife forgot to check when she changed the load, so they shrunk a bit. Still perfect for rolling down, but useless for rolled up with garters and flashes.

Soccer socks should provide the same effect and look, but at a bit of a cheaper cost. The kilt hose will hang a bit looser and look more casual.

That picture actually came from an article in the Scotsman regarding the failed hopes and dreams of the tartan army.