High Quality Material: This heat reflective blanket is waterproof, windproof and has excellent heat retention. Made of non-woven fabric and polyester mesh combined with aluminum mylar coatingWaterproof Shelter: Since space blanket is waterproof, it can also be used as a tarp in rain or snow as well as a poncho. It has 4 metal grommets in each corner to easily and quickly rig a shelter. Extra Large Size: 59''x83''/150cmx210cm. weight: 1lbs/450g. Multi-Purpose: The extra large heavy duty blanket can serve as a emergency tarp, ground cover or a shelter to prevent hypothermia when you are hiking, camping,hunting and all other outdoor activitiesPractical: Easy to spot green color on one side and highly reflective aluminum on the other side make it extremely useful for emergency signaling.Also useful to have in the trunk of your car or truck in case of emergencies