If you’re going on an unsupported expedition you need high-quality lightweight kit you can rely on, as your life could be put at risk if it fails. Multimat’s NATO Mattress 35 S is designed to meet these needs like no other mat. Born specifically for the British Armed Forces, it is the current standard equipment for operational use in all arenas. Meeting NSN 8465-99-310-9203 requirements, it is a light, self-inflating 35mm thick mattress, made to be durable and reliable in the most extreme conditions our planet can throw at it. The tough 75D polyester “rip-stop” water-repellent upper fabric with a 150D waterproof coated base fabric gives it essential durability, with non slip to both surfaces for your convenience. The vertically drilled top-quality foam core ensures it continues to fully inflate through the removable & serviceable large valve, time after time. It even features an anti-bacterial ether TPU membrane for an air-tight seal that’s been specially formulated to work at lower temperatures. If you’re looking for an extra-light self-inflating expedition mat for polar or high altitude expeditions, check out the military issue NATO mattress 35 S.