Excerpt: The Marmot Hydrogen is an ultralight down sleeping bag available in both regular and long. The bag is only available in 30 degree Fahrenheit rating, so it is a nice bag for cool weather hikes or excursions where weight restrictions are important.
Excerpt: These are questions you need to ask yourself before you buy a sleeping bag. The answer will vary depending on what you want to use your sleeping bag for. You want a 'do everything' sleeping bag? So do I!