The super packable Marmot NanoWave 55 Degree Sleeping Bag fits right into your kayak stern or bike panniers the lightweight bag is a master space saver. DWR treated polyester taffeta fabric sheds moisture. EN tested to 55F, the bag has synthetic SpiraFil high loft insulation that stays warm even when wet. SpiraFil high loft insulation. 100% polyester taffeta DWR shell and lining. Shingle construction on Rockaway, blanket construction on NanoWave. Snagless draft tube. Feely draw cords. Rockaway has Velcro free face muff and classic trapezoidal foot box. Two way zipper sliders, zipper garage. Hang loops. Compression stuff sack included. Left zip regular length only.