Marmot Hydrogen Sleeping Bag – By : rich 7 May 2002 0 Uncategorized Marmot Hydrogen Sleeping Bag – 30 Degree Down The lightest summer sleeping bag ever. List for $269. Here for $20 less plus free shipping. Share this:TwitterFacebookLinkedInWhatsAppMorePrintRedditTumblrPinterestPocketTelegramSkypeEmailLike this:Like Loading... Related Post navigation Previous Previous post:Next Next post: