The Big Agnes Air Core Ultra offers comfort and value. This light and compact three-season insulated pad is designed with a smooth and stable sleeping surface made with durable nylon rip-stop and larger outside tubes to cradle you on top. Warm and highly packable insulation on top and bottom make this air pad lighter on your pack than most in its class. Durable, lightweight nylon double rip-stop fabric Proprietary I-Beam construction reduces weight and provides consistent stability and comfort Aviation grade TPU lamination technology for weld strength and ultimate dependability THERMOLITE® Insulation working with a heat reflective film traps body heat and reflects it back Antimicrobial treatment inside the pad prevents microorganism growth High volume valves with micro adjustments make for fast inflation/deflation and easy fine tuning to your preferred firmness Protective storage sack, replacement valve seal and 3M repair patches included