The SynMat 7 does not reach the insulating properties of a DownMat 7 but offers the same high comfort, low weight, durability, and small packed size. The synthetic microfiber insulation is less expensive than down. The warmth to weight ratio of the SynMat is superior to traditional sleeping mats. Packed Size: Medium: 8x6in; Medium/Long Wide: 11x6in. Packed Volume: Medium: 3.71L; Medium Wide: 4.77L; Long Wide: 5.1L. Product contents: Mat, Packsack, Repair kit, Instruction sheet, Repair manual. Materials: Top: 150 D/75 D Polyester, brushed, TPU Polyether Film Laminate, hydrolysis resistant, Honeycomb embossed; Bottom: 75 D Polyester, TPU Polyether Film Laminate, hydrolysis resistant; Fill: 160 g/m² Texpedloft microfiber.