guilliamo..it was a Space brand,made in the UK for MPI Outdoor Safety Products.this is all silver and not the orange one of the same size and shape,about the size of your fist.that bag got a lot of hard use.i carried it around in the pocket of my PFD for at least four years.two weeks in the spring and two in the fall on wilderness canoe trips where the PFD got some really rough use being tossed into and out of the canoe and onto the rocks and such at the portages and was wet from rain more that i liked.i kept it in the pack it came in which is just a plastic sack about as thick as a freezer bag zip lock.when i took it out on the snowshoe hike i could see that the bag was somewhat gray and not silver.i have another bag right in front of me now that has just been in camp gear storage for a couple years and looks fine,i'll re-bag it in a couple zip locks but my trust level is down on this and thru advice on this forum i replaced these lower priced bags with the Heat Sheets.i would rate these as good for one season on the trail.just stored in a BOB they should last for years.