ALPS Mountaineering Camp & Hike Zenith 0 Sleeping Bag Regular Flame Red/Coal 31in x 80in 4351442. The key to a cozy and comfortable night’s sleep in the great outdoors is starting your day with the ALPS Mountaineering Zenith 0 Sleeping Bag. To keep you warm in temperatures where it is cold out the ALPS Mountaineering Zenith 0 Degree Sleeping Bag is made with 600-fill hydrophobic down – which retains the heat for you and keeps the cold from getting in. You can keep the Zenith compressed since it has a compression stuff sack; this is one of the many benefits of having a 0 degree sleeping bag. Stay warm and comfortable on any cold camping or hiking trip when you sleep inside the ALPS Mountaineering Zenith 0 Degree Sleeping Bag. Find more of the highest quality in camping hiking and outdoor gear from ALPS Mountaineering here.