Sea To Summit

Spark Pro Sleeping Bag: 30F Down

DryDown Treatment is a specialized process applied to down insulation that enhances its ability to resist moisture. Unlike regular down, which can lose its insulating properties when wet, DryDown maintains its loft and warmth even in humid conditions. This means you can rely on your sleeping bag to keep you warm and comfortable in various weather situations, making it a great choice for unpredictable outdoor adventures.

The Free-Flow Zip is designed for optimal ventilation and easy access to your sleeping bag. This innovative zipper mechanism allows you to open the bag partially or fully without it getting stuck, making it easier to regulate your temperature. Whether you want to cool down on a warm night or use the bag as a quilt, the Free-Flow Zip enhances your overall comfort and convenience.

10d Nylon refers to the thickness of the nylon fabric used in the sleeping bag, with "10d" indicating a fiber thickness of 10 denier. A lower denier number means the fabric is lighter and thinner, which is ideal for ultralight backpacking. This lightweight material helps reduce the overall weight of your sleeping bag, making it easier to carry on long hikes without sacrificing durability.

950-fill Down is a high-quality insulation material known for its exceptional loft and warmth-to-weight ratio. The "fill power" rating indicates how well the down can trap air and provide insulation. A higher fill power, like 950, means the down is very light and compressible while still offering excellent warmth. This makes it perfect for backpacking, as it keeps you warm without adding unnecessary weight to your pack.

A Storage Cell is specifically designed to maintain the condition of your sleeping bag when it's not in use. Unlike compression sacks that can squish the insulation and reduce its effectiveness, a Storage Cell allows your bag to retain its loft and shape. This helps prolong the lifespan and performance of your sleeping bag, ensuring it stays warm and comfortable for many camping trips to come.

Yes! Sleeping bags with DryDown Treatment are specifically engineered to perform well in wet conditions. The treatment helps the down insulation resist moisture, allowing it to maintain its loft and insulating properties even when exposed to humidity or light rain. This makes it an excellent choice for camping in unpredictable weather, ensuring you stay warm and dry throughout the night.