Sierra DesignsNitro Quilt 20 Degree

Description A lightweight alternative to a 3-season sleeping bag, the Sierra Designs Nitro Quilt 20 Degree is open on one side in order to fully utilize your sleeping pad for under-body insulation and padding. While not for everyone, the innovative design saves weight and provides versatility. The quilt is insulated with 800-fill DriDown water-resistant insulation. Renowned for their efficiency in retaining heat and compressible properties, the feathers and fibers of down have an incredibly soft, comfortable feel, and despite advances in synthetic materials, continue to provide the best warmth-to-weight ratio of any insulation available. The one inherent weakness of down insulation is that it loses much of its ability to maintain warmth when it gets wet; but DriDown performs differently. Employing a unique, innovative polymer application, DriDown actually creates a hydrophobic finish on each individual plume of down. This treatment results in insulation that stays dry longer and drie