Even the summers in the alpine can be cold and clammy, so bundle up in Mountain Hardwear's Phantom Spark Sleeping Bag after the alpenglow. This superlight bag uses Q. Shield hydrophobic down insulation to ensure warmth when moisture rolls in while you're sleeping, and the 800 fill weight affords the best loft to warmth ratio available. Mountain Hardwear gave the Phantom Spark a snug, weight saving, performance mummy cut. The insulated hood features a gasket to protect your face from wind, and the draft collar has two drawcords to ensure a secure fit. The bag is finished with a full length zipper and includes a stuff sack for extra camping convenience.