"...'GI Type Poncho Liner'..."

"type" means that it is a copy. Might be an exacty copy, might be pure junk. I would stick with the real thing, it doesn't cost all that much more. I have seen poncho liners advertised what had a diffenent insulation (thinsolate I think, not sure), they were supposedly warmer for about the same weight, but I don't know.

I stuff mine into a small stuff sack, probably six inches in diameter by eight tall, give or take a bit. They are great!!!