The Swing 500 is a solid value and well proven sleeping bag for those who are looking for a 2-season bag for trekking with a reasonable budget. With this duck down bag, you will be surprised by its perfect anatomical poise, and its exceptional comfort in two-season conditions. Though aimed at 2-season treks, the Swing is designed to allow top performance when you push the limits of the low-temperature range, thanks to a perfectly constructed foot box, semi-elastic draft collar and a well tailored hood.