This is a fleece seat warmer for the Helinox Chair Two. I bought it new but never used it, so I'm selling it to organize my belongings. Product Description: The brushed fabric seat feels good against the skin, increases the warmth of the seat and backrest, and makes outdoor activities comfortable in the chilly season. Comes with a stuff sack. Specifications: Weight: 375g (395g) *The weight in parentheses includes the stuff sack. Color: Black (BK) Storage Size: Φ12cm x 23cm Compatible Model: Chair Two