650fill down is lightweight, warm and compressible. Lightweight but durable #5 zipper with antisnag for easy entry and exit. Standard mummy cut is efficient, warm and comfortable. Downfilled face gasket comfortably blocks drafts at the hood opening. Twoway zipper allows for easy ventilation. Left hand and right hand zippers available for ziptogether functionality. Durable waterrepellent finish. Stuff sack and mesh storage bag included.