SKU: SS20535 Insulation Type: Synthetic Weighs: 2232g (Regular) Comfort Limit: -18°C Zip Length: 3/4 Length Zip Position: Left Zip Type: Mummy Thermarest's top-rated Saros Synthetic sleeping bag offers a warm, lightweight and fully-featured sleeping bag for cold weather comfort while camping and backpacking. Thermarest says: When the weather gets frigid and th… Saros 0 Synthetic Sleeping Bag