I used a silk liner, and I highly recommend it; Added a few degrees of warmth to my sleeping bag and kept my bag cleaner when I was too tired to bathe. Point: From over 2000 miles of experience you will not bathe as often as you would like. Understand that the liner will protect your bag from absorbing the everlasting funk you will develop between baths.
Bama - 2006
I hope it’s ok to post a url here for this company that has great silk liners and great customer service. This company is based in New Zealand and they will ship to the U.S. for a reasonable cost and the bags are very inexpensive compared to what you might pay at an REI or outfitter. Plus, they have cool and/or psychedelic colors! Highly recommend this product!
Smack