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Keep your inner furnace burning through the night with a compressible 550-fill ProDown™ insulated mummy bag that delivers reliable insulation when backpacking in wet, cold climates with temps down to 20«F. This three-season bag is insulated with water-resistant ProDown™ that absorbs less water and dries faster than traditional down to keep you warmer when exposed to moisture. An anti-compression layer of synthetic Heatseeker™ eco insulation offers thermal protection on the underside of the bag.
Using only the highest quality goose down in all of our products, The North Face® tests each lot of down at three stages of production for loftiness, moisture resistance and ability to regain loft after compression.
The fill power of goose down is an indicator of two important features: warmth-to-weight ratio and compressibility, both critical to retain warmth and furnish comfort. True fill power is measured by placing one ounce of goose down in a graduated cylinder and measuring the volume the down occupies in cubic inches. The North Face® products are insulated with exclusive, high-fill power goose down ranging from 550 to 900 fill, which represents the highest quality down commercially available.