Full-length, insulated zipper draft tube defends against cold air intrusion
2-way zipper for more ventilation options
Can be fully unzipped for use as a blanket or mated with same size (Large) rectangular models to create a 2 person, double sleeping bag
Drawcord closure
Internal pocket
Compression stuff sack included
INSULATION
Eureka! Rteq Premium Synthetic Insulation is a propietary blend of different polyester fiber types. Each fiber type is uniquely chosen for its individual thermal characteristics, as well as its contribution to the overall insulation formula. The end result is a superior synthetic insulation that maximizes thermal performance through a careful balance of weight, loft and compressibility.