An Ember quilt can be an ideal option for bikepackers, ultralight hikers and travelers.A well-constructed quilt means freedom: Freedom from the weight of a sleeping bag zipper; freedom from the constrictive shape that comes with some sleeping bags.The Ember Series takes the simplicity of the quilt concept a step further. The high quality 850+ loft Ultra-Dry Down and 10 D outer / 7D inner shell material mean incredibly lightweight and tiny packed size. The snap-on attachment straps keep your quilt located on your sleeping mat, while the drawcord base of the 40F and 30F give the Ember a shape-shifter function: wider at the base for more freedom of movement when its warm, snugged down when its cooler.