Western Mountaineering

Puma Super MF Sleeping Bag: -25F Down

MicroLite XP is a lightweight and breathable polyester microfiber that allows moisture to escape while keeping you warm and dry. Its design ensures that you stay comfortable during your outdoor adventures, making it perfect for camping in various weather conditions.

The 850-fill down insulation provides exceptional warmth while remaining lightweight. This high fill power means that the down can trap more air, keeping you warmer without adding bulk. It's especially beneficial for cold-weather camping, ensuring you stay cozy throughout the night.

The Durable Water Repellent (DWR) treatment on the outer fabric of the sleeping bag helps to repel water, preventing moisture from soaking in. This is crucial for maintaining the insulation's effectiveness and keeping you warm, especially in damp conditions. However, remember that it is not completely waterproof.

Mummy-shaped sleeping bags are designed to fit closely to your body, which reduces the amount of air inside the bag that needs to be heated. This design not only enhances warmth but also makes the bag more efficient for cold weather camping, ensuring you stay snug and comfortable.

Interlocking draft tubes are strategically placed along the zipper line to prevent cold air from entering the sleeping bag. By creating a barrier against drafts, these tubes help retain heat, making your sleeping experience much warmer, especially in frigid conditions.

While the features like 850-fill down and DWR treatment are excellent for cold weather, many sleeping bags with these specifications can also be suitable for summer camping. Look for options with lighter insulation or adjustable ventilation to ensure comfort during warmer nights.