Measures 36" x 84". Made of a strong insulating material which reflects back 90% of the user's body heat. Reversible options - orange to silver. Water and wind resistant. Opens into a full sized sleeping bag that will fit a fully clothed adult. It not only helps to provide protection in various weather conditions but also prevents and assists treatment of hypothermia. It can also be used as a signaling device for easy identification by using the silver side. Folds to compact size for easy storage.