wool, wool, and wool and leather.<br><br>If something happens while I am out and about then I will probably be in casual or business casual which means either wool slacks and a cotton shirt or blue jeans and a cotton tee shirt. Oh well that is how things find me. <br><br>For hiking I take much lighter materials. I have taslan nylon convertable hiking pants, polypro union suit, cool-max tee shirts, silk long-johns, polypro glove-liners, nylon shirts, gortex outer wear tops and bottoms and I pack only what I think I will need for the hike. A planned hike is no more like a survival evacuation than a day at the office is. <br><br>In my BOB which is packed for intermediate to long-range evacuation I have wool Military Surplus slacks (dress and BDU) I can't find anything even closely as durable for the price. Wool shirts, wool union suit, wool socks, wool mittens, wool watch cap, leather boots, leather gloves, leather jacket. I want durable warm clothing if I might be away from home for an extended period of time. I am evacuating not thru-hiking. If my evacuation should turn into a hike due to collapse of roads or vehicle then I would move slower than I might more lightly packed but I would be much more likely to get through hazardous disaster conditions. Likewise my BOB first aid supplies are substantially larger and different from my hiking FAK.<br><br>Wool is warm wet or dry. Wool is long wearing. A fine merino wool is quite as comfortable against the skin as cotton and wicks moisture better. Only in an extremely warm / humid environment would cotton be better. In any kind or harsh environments the synthetics break down much faster than either wool or cotton. Dirty Goretex leaks, nylon melts, wet nylon is cold, polypro melts and tears much more easily. Leather boots will outlast goretex boots every time. Leather boots can be re-waterproofed if they start to leak, Leaky Goretex is Leaky.<br><br>I would never want to hike in my BOB clothing since it is about 5 times heavier than my hiking clothing. Likewise I would never want to mount a family evacuation with only my hiking gear.<br><br>