Will said:As stated, Opinel is a great choice, the No. 6 would be about the size you want. Perhaps a better choice is the Gerber LST (1.3 oz.):
http://www.knivesplus.com/GB-6009-Gerber.HTML
Will
1.3 oz. = 35 grams. Lighter than the Opinels or the Calypso Jr. I used to backpack with one of these (until I lost it), and I really think it is worth a close look. (for $15 you can't really go wrong)