The Mountain Hardwear Lamina 15 Degree Synthetic Sleeping Bag is a great choice if you like three-season camping that can take you anywhere. Synthetic insulation delivers reliable warmth if you encounter wet conditions, or if your hydration bladder leaks in your pack (hey, accidents happen), yet Thermal.Q doesn't come across as the bulky, weighty stuff you're used to. This polyester fill packs down well, so you can take the bag on multi-night trips, and the bag features unique Lamina welded baffles that directly connect the insulation to the durable face fabric to eliminate cold spots. The 15-degree rating is just right for getting you through early spring or late fall nights, while a dual-way zipper helps you vent from the feet if you're camping in high-summer conditions.