Hum, lets see...hiking.... depending on terrain, would probably need a loose fitting but breathable fabirce...in the PWS something along the lines of a SWK heavy weight, her in the southwest, more thank likely a x-kilt in a cotton or hemp, unless in "extreme" conditions. I Could see a Mcmurdo super HW if you were hiking the rocky mtn trail in the spring or fall, but for the most part I would surmise, a kilt that was rough, easily cleaned, and most of all not a tragic loss should you "slip and fall".

Here in NM

Amerikilt
SWK standard
FC 16 oz (late fall, winter, early spring)
X kilt of a durable oz weave.

A "less expensive" wool 4 yard for most of the the year

a MOD of you who insist on camping when its "OMG Cold".

Stay tuned, Weasel and I plan on going after Elk this year kilted in Cammo X kilts, with bows. Of course Bow elk season here is mid September and the area we are plaining on is usually 72-83 during the day; but the nights get chilly.

Long and short, just depends on where and when you hike.