The legendary Lamina™ sleeping bag is back, now significantly lighter without sacrificing durability. Its unique, welded Lamina™ construction eliminates thermal bridges, while the new Temperlite™ insulation provides exceptional warmth for a reduced weight. Thermally mapped to concentrate heat where you need it most, this bag features a durable ripstop shell, a hood, and an anti-draft collar, along with an efficient mummy cut. Perfect for mountaineering and cold-weather camping, it delivers reliable performance for your most demanding adventures.