Hit the Pacific Crest Trail with the Therm a Rest Saros Sleeping Bag in your backpack, and revel in three seasons of blissful sleep. Since this sleeping bag is insulated with synthetic insulation, you won't have to pamper it in the backcountry as you would with a down bag, as it will retain its insulating properties if it gets wet. This full featured bag is fitted with a draft collar and tube, as well as an anti snag zipper, so you aren't struggling with your zipper after a long day of hiking. An external zippered pocket is a great place to stash a headlamp, and the adjustable hood can be cinched down to keep your dome warm throughout the night. Like all Therm a Rest sleeping bags, the Saros features SynergyLink mattress straps, which allow the bag to be securely attached too your sleeping mattress for a warm and comfortable night's sleep, no matter how much you roll around.