Both series have great options. It just depends on your personal preferences and needs.
Benefits of the Elite series:
• Mummy shaped fit: snugly wraps you and results in weight savings without being too constrictive
• Secondary attachment clips: more contact surface between the quilt and your pad
Benefits of the Flex Series:
• Opens to a blanket: increased versatility, especially in warmer weather
• Zippered footbox: the zipper, snap, and down filled draft blocker allow you numerous options for ventilation, or entirely blocking out the cold
Both series feature our patented pad attachment system and differential cut, as well as comfortable down filled collars, and elasticized edges to keep out drafts.