SKU: SS24140 Weighs: 515g (ex bag) Mat Size: Long R-Value: 4.5 Season Rating: Winter Mat Type: Airbeds The Mountain Equipment Mirrostat 7.0 Sleeping Mat provides warmth, stability, and portability. With an R-value of 4.5, it's suitable for mild winter conditions. The offset baffle construction offers stability, preventing… Mirrostat 7.0 Long Sleeping Mat