What Our Gearhead(R) Experts Are Saying:"I've trusted the Lamina 0 on winter camping trips, and it's a game-changer. It packs well, feels super warm in freezing temps, and the synthetic insulation handles moisture like a pro."When temperatures plunge and frost coats the tent, we stay toasty in the Mountain Hardwear Lamina 0 Sleeping Bag. Built for frigid nights in the backcountry, this bag features synthetic insulation that keeps us warm and cozy even when damp conditions set in. Its innovative Lamina construction eliminates cold spots by maximizing loft and distributing insulation evenly, giving us confidence when pushing into sub-zero temperatures. Designed with the rigors of winter camping in mind, the Lamina 0 boasts a durable, water-resistant shell that fends off condensation, while the roomy mummy shape provides extra comfort for deep, restorative sleep. The lightweight yet compressible build makes it easy to pack along for cold-weather expeditions, from alpine treks to snowy base camps.