By way of modest and simple etymological clarification, the word khaki is derived from the Urdu/Persian word for "dust".

And as far as an alternative for light-colored/warm weather kilt hose, I personally and very highly recommend these, from an excellent eBay seller in Ontario, Canada:

http://www.ebay.com/itm/German-Trach...item2c85c986ec

http://www.ebay.com/itm/German-Trach...item2c8704aeff

http://www.ebay.com/itm/German-Trach...item2ed3ec19c3

http://www.ebay.com/itm/German-Trach...item2ed3ab11c1