When it comes to superlight, three-season comfort, the Rapide SL Insulated pad stands alone. Built with offset I-Beam construction, this proprietary design reduces weight while providing multi-directional support for consistent stability and comfort. This superlight air chamber pad sleeps warmer using PrimaLoftA(R) Silver Insulation and is third party rated with an R-Value of 4.2 for use through three-seasons. The Rapide SL Insulated is lighter, tougher, more packable, easy to inflate/deflate, and provides superior performance and packability for any adventure. Save your breath for the miles ahead and use the included pad inflation sack to inflate. Features R-Value: 4.2, Three-Season 3.5" / 9cm thick pad with 4.25" / 11cm larger outer chambers keep you comfortably cradled in the middle of the pad Quilted top provides a cushioned pillowy sleeping surface Durable, superlight nylon double ripstop PrimaLoftA(R) Silver Insulation working with a heat reflective barrier traps body heat and reflects it back, so you stay comfortable as the temperatures drop Proprietary offset I-Beam construction reduces weight and provides consistent stability and comfort Aviation-grade TPU lamination provides ultimate weld strength and dependability Quieter materials than other pads on the market Antimicrobial treatment inside the pad prevents microorganism growth Individually inflated and tested at our factory ensuring 100% quality performance High-volume valve allows for efficient and easy inflation, super-fast deflation, and micro adjustments Includes pad inflation sack, protective storage sack, replacement valve seal, and 3M repair patches Construction + Materials Durable, superlight nylon double rip-stop fabric Aviation-grade TPU lamination technology provides ultimate weld strength and durability Quieter materials than other pads on the market PrimaLoftA(R) Silver Insulation Layer of heat reflective film High-volume valve allows for efficient and easy inflation, super-fast deflation and micro adjustments Valve illustration copy: One-way inflation valve with micro air-pressure adjust button Quick-deflation valve